Methods and apparatus for logical triggering

• US 20040264323A1
• Filed: 01/28/2003
• Published: 12/30/2004
• Est. Priority Date: 01/28/2002
• Status: Abandoned Application

• Current Assignee: Vindur Technologies, Inc.
• Original Assignee: Vindur Technologies, Inc.
• Inventors: Worthington, Mark Oscar, Pal, Andrew Attila
• Application Number:
  US10/353,839
• Publication Number:
  US 20040264323A1
• Time in Patent Office: Days
• US Class Current: 369/47.27
• CPC Class Codes: G01N 35/00069 whereby the sample substrate is of the bio-disk type, i.e. having the format of an optical disk
• CPC Class Codes: G11B 2020/1269 Absolute time in pregroove [ATIP] information
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/235 Multilayer discs, i.e. multiple recording layers accessed from the same side
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/2575 DVD-RAMs
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/19 by using information detectable on the record carrier
• CPC Class Codes: G11B 27/24 by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording
• CPC Class Codes: G11B 27/26 by photoelectric detection, e.g. of sprocket holes
• CPC Class Codes: G11B 27/3027 used signal is digitally coded

Abstract

Logical triggering methods and apparatus for use with optical bio-discs. Some embodiments place physical triggers on the surface of the disc. Other embodiments logically encode triggers in user data area of optical bio discs. Still other embodiments take advantage of common optical disc operational components such as pits, lands, and other information encoding indicia for the purpose of encoding triggers. Primary decoding components are used to decode logical triggers. Alternatively, an added secondary decoding component or a data processor may also be used for the purpose of processing triggers. Logical triggers may be encoded in a pit/land pattern, encoded in the time code control information of wobble signal of a CD-R/RW disc, encoded in the header address information of a DVD-RAM based disc, or may be superimposed on the operational logic of the drive. Other triggering patterns are invoked by chemical reaction caused by chemistry placed on the discs.

Claims

1. A method for triggering, comprising:

encoding a trigger on an optical bio-disc;

detecting said trigger;

processing said trigger; and

enacting an action associated with said trigger.

2. The method of claim 1 wherein said trigger is a physical trigger.

3. The method of claim 2 wherein said physical trigger is added on to the surface of said optical bio-disc.

4. The method of claim 3 wherein said step of detecting further comprises using an additional detector to detect said trigger.

5. The method of claim 3 wherein said step of processing further comprises using a data processor to process said physical trigger.

6. The method of claim 1 wherein said trigger is a user data encoded trigger.

7. The method of claim 6 wherein said trigger is encoded in the user data portion of said optical bio-disc.

8. The method of claim 7 wherein said step of processing further comprises using a secondary decoding component to decode said user data encoded trigger.

9. The method of claim 1 wherein said trigger is a logical trigger.

10. The method of claim 9 wherein said step of processing further comprises using a primary decoding component to decode said logical trigger.

11. The method of claim 10 wherein said step of enacting further comprises monitoring signal from said primary decoding component to determine whether a logical trigger has been decoded.

12. The method of claim 10 wherein said primary decoding component is a standard decoding component in an optical disc drive.

13. The method of claim 9 wherein said step of processing further comprises using a secondary decoding component to decode said logical trigger.

14. The method of claim 9 wherein said logical trigger is encoded in one or more pits of said optical bio-disc.

15. The method of claim 9 wherein said logical trigger is encoded in one or more lands of said optical bio-disc.

16. The method of claim 9 wherein said logical trigger is encoded in one or more grooves of said optical bio-disc.

17. The method of claim 9 wherein said logical trigger is encoded in one or chevron marks of said optical bio-disc.

18. The method of claim 9 wherein said logical trigger is encoded in a pre-land pit pattern in said optical bio-disc.

19. The method of claim 18 wherein said optical bio-disc is based on the format of a DVD−

R based disc.

20. The method of claim 18 wherein said optical bio-disc is based on the format of a DVD+R based disc.

21. The method of claim 18 wherein said logical trigger is encoded in the control information defined by a standard specification encoded in said pre-land pit pattern.

22. The method of claim 21 wherein said logical trigger is a standard function in the control information defined by said standard specification.

23. The method of claim 21 wherein said logical trigger is encoded in the reserved bits in the control information defined by said standard specification.

24. The method of claim 9 wherein said logical trigger is contained in a pit pattern coincided with a wobble groove.

25. The method of claim 9 wherein said logical trigger is encoded in the modulated signal in the wobble groove of said optical bio-disc.

26. The method of claim 25 wherein said optical bio-disc is based on the format of a CD-R disc.

27. The method of claim 25 wherein said optical bio-disc is based on the format of a CD-RW disc.

28. The method of claim 25 wherein said logical trigger is encoded in the time code information.

29. The method of claim 28 wherein said logical trigger is a pre-defined drive operational function according to a standard specification of said time code information.

30. The method of claim 28 wherein said logical trigger is encoded in the reserved bits defined by said standard specification of the time code information.

31. The method of claim 28 wherein said logical trigger is encoded in the undefined bits in said standard specification of said time code information.

32. The method of claim 9 wherein said optical bio-disc is of a DVD-RAM type format.

33. The method of claim 32 wherein said logical trigger is encoded in the header address information of said DVD-RAM type optical bio-disc.

34. The method of claim 33 wherein said logical trigger is used to tag an associated sample area of said optical bio-disc, whereby said associated sample area can be identified and randomly addressed.

35. The method of claim 33 wherein said logical trigger is encoded in the PID field of the header address.

36. The method of claim 33 wherein said step of processing further comprises:

reading an address;

checking said address against a list of pre-defined addresses to determine whether said address is a trigger; and

associating an action with said address.

37. The method of claim 36 wherein said action is starting characterization.

38. The method of claim 36 wherein said action is stopping characterization.

39. The method of claim 36 wherein said action is writing data sampling results back into an area on said optical bio-disc associated with said address.

40. The method of claim 36 wherein said action is changing the operational mode of the optical disc drive.

41. The method of claim 33 wherein said logical trigger is a pre-defined drive operational function according to a standard specification of said header address information.

42. The method of claim 33 wherein said logical trigger is encoded in the reserved bits defined by a standard specification of said header address information.

43. The method of claim 33 wherein said logical trigger is encoded in the undefined bits defined by a standard specification of said header address information.

44. The method of claim 33 wherein said logical trigger is manufactured into said optical bio-disc.

45. The method of claim 33 wherein said logical trigger is written into said optical disc by a software program.

46. The method of claim 9 wherein said logical trigger is a signal pattern superimposed in the operational logic of a bio-disc drive.

47. The method of claim 46 wherein said signal pattern is derived from a set of focus information.

48. The method of claim 46 wherein said signal pattern is derived from a set of tracking information.

49. The method of claim 46 wherein said signal pattern is derived from a set of synchronization information without reducing the instantaneous capability to perform an operational function.

50. The method of claim 46 wherein said signal pattern is superimposed on a reflected operational signal.

51. The method of claim 46 wherein said signal pattern is superimposed on a transmitted signal.

52. The method of claim 46 wherein said logical trigger is decoded in a separate decoding path while the signal of generated by said operational logic is decoded in main path.

53. The method of claim 46 wherein said signal pattern is invoked by a chemical change in said optical disc assembly.

54. The method of claim 53 wherein said chemical change is instantaneous.

55. The method of claim 53 wherein said chemical change reacts over a period of time.

56. The method of claim 53 wherein said period of time is pre-determined.

57. The method of claim 53 wherein said chemical change is triggered by the addition of kinetic energy generated by the rotation of said optical bio-disc.

58. The method of claim 53 wherein said chemical change causes a change in the polarization of the laser light.

59. The method of claim 58 wherein said change in the polarization is a change of the shape of the polarization from a circular shape to an elliptical shape.

60. The method of claim 9 wherein said logical trigger is created by adding an interference feature on said optical bio-disc in a primary or secondary signal in the decoding path.

61. The method of claim 60 wherein said interference feature creates trigger information in a transmitted signal.

62. The method of claim 9 wherein said step of encoding further comprises encoding said logical trigger as an unused legal word recognized in a pre-existing error-correction scheme.

63. The method of claim 62 wherein said pre-existing error-correction scheme is EFM.

64. The method of claim 9 wherein said step of encoding further comprises:

encoding said logical trigger as an illegal word not recognized in a pre-existing error-correction scheme; and

ensuring said logical trigger is a sufficient distance from any other logical trigger so that an uncorrectable error signal will not be generated in said pre-existing error-correction scheme.

65. The method of claim 64 wherein said error-correction scheme is EFM.

66. The method of claim 64 wherein said uncorrectable error signal is of the type C1 or C2.

67. The method of claim 64 wherein said uncorrectable error signal is of the type PI or PO.

68. The method of claim 1 wherein said step of encoding trigger further comprises:

calculating correlation between physical positions on disc and the size of a plurality of user data files;

setting up a lookup table; and

writing said plurality of user data files as triggers.

69. The method of claim 68 wherein said step of processing further comprises using a secondary decoding component to correlate said user data files with physical locations using said lookup table.

70. The method of claim 69 wherein said step of enacting further comprises enacting an action specified by the information stored in said user data file.

71. The method of claim 70 wherein said action is a drive function.

72. The method of claim 71 wherein said drive function is the command to begin first sampling of data.

73. The method of claim 72 wherein said operation function is the command to begin a second sampling of data.

74. The method of claim 70 further comprising the step of using a plurality of logical triggers in conjunction with said user data files.

75. The method of claim 70 further comprising the step of using a plurality of physical triggers in conjunction with said user data files.

76. The method of claim 1 wherein said action is enacted only for a set time period.

77. The method of claim 1 wherein said action is starting a data sampling of a sample.

78. The method of claim 1 wherein said action is starting a timer.

79. The method of claim 1 wherein said action is stopping a timer.

80. The method of claim 1 wherein said action is starting a characterization of an investigational feature.

81. The method of claim 1 wherein said action is stopping a characterization of an investigational feature.

82. The method of claim 1 wherein said action is refocusing a laser of a drive reading said optical bio-disc.

83. The method of claim 1 wherein said action is repositioning a head of a drive reading said optical bio-disc.

84. The method of claim 1 wherein said action is changing a rotational speed of said bio-disc.

85. The method of claim 1 wherein said action is changing an operational mode of a drive reading said optical bio-disc.

86. The method of claim 1 wherein said action is increasing the power of the writing laser of a drive writing said optical bio-disc.

87. The method of claim 1 wherein said action is increasing the power of the reading laser of a drive reading said optical bio-disc.

88. The method of claim 1 wherein said action is interrupting the rotation of the optical bio-disc.

89. A method of triggering, comprising:

encoding a trigger on a first surface of a multi-layered optical bio-disc; and

using said trigger to redirect the focus of an objective assembly reading said multi-layered optical bio-disc to a second surface of said multi-layered optical bio-disc.

90. The method of claim 89 wherein said multi-layered optical bio-disc is based on the multi-layered DVD disc format.

91. A method of triggering, comprising:

using a secondary laser to project an image of feature from a second layer of a multi-layered optical bio-disc on to the signal generated from the light of a primary laser source reading a first layer of said multi-layered optical bio-disc;

detecting said signal; and

decoding said detected signal for logical triggering.

92. A method of triggering, comprising:

impressing a feature on second layer of a multi-layered optical bio-disc whereby said feature is projected on to the signal generated from the reading a first layer of said multi-layered optical bio-disc, whereby an interference pattern is created;

detecting said signal; and

decoding said interference pattern for logical triggering.

93. The method of claim 92 wherein said feature is a holographic feature.

94. The method of claim 92 wherein said step of detecting is performed by a detector mounted on a side opposite to the laser source.

95. The method of claim 92 wherein said step of detecting is performed by a detector on the same side of the laser source.

96. The method of claim 92 wherein said second layer is layer 1 of a multi-layered DVD disc.

97. The method of claim 92 wherein said first layer is layer 0 of a multi-layered DVD disc.

98. The method of claim 92 wherein said feature is placed on the focal plane of said second layer.

99. The method of claim 92 wherein said feature is placed distal to said second layer.

100. The method of claim 92 wherein said feature is placed in the area between said second layer and said first layer.

101. A method of creating an address system for optical bio-disc, said method comprising the steps of:

placing to one side of an associated sample area, a first set of triggers representing binary encoding of a spot address; and

placing to another side of said sample area, a second set of triggers representing binary encoding of identifiers of the portions of said associated sample area.

102. The method of claim 101 wherein said first set of triggers comprises:

a dark trigger representing a lead-in signal; and

a plurality of dark and light triggers representing the binary address of said associated sample area.

103. The method of claim 101 wherein said second set of triggers further comprises:

a plurality of dark and light triggers representing the binary encoding identifying the portions within said associated sample area; and

a dark trigger representing a lead-out signal.

104. The method of claim 101 further comprising the steps of:

placing a first light trigger between said first set of triggers and said associated sample area; and

placing a second light trigger between said second set of triggers and said associated sample area.

105. A method of encoding security features on an optical disc, said method comprising:

placing a physical pattern on said optical disc, said physical pattern representing a encoded data key;

using an optical disc drive to read said optical disc, said drive enabled to detect said physical pattern;

decoding said physical pattern to retrieve said data key;

matching said data key with another security key; and

reading said optical disc if said matching step produces a match.

106. A method of reading an addressable optical bio-disc, comprising;

placing said optical bio-disc in a optical bio-drive;

detecting a trigger on said optical bio-disc;

decoding said trigger to obtain an address; and

using said address to perform an associated action.

107. The method of claim 106 wherein said optical bio-disc is based on the DVD-RAM format.

108. The method of claim 107 wherein said trigger is a header address system of said DVD-RAM based optical bio-disc.

109. The method of claim 106 wherein said trigger is placed to one side of an associated sample area on said optical bio-disc.

110. The method of claim 109 wherein said trigger is a spot address trigger.

111. The method of claim 110 wherein said spot address trigger further comprises:

a dark trigger representing a lead-in signal; and

a plurality of dark and light triggers representing the binary address of said associated sample area.

112. The method of claim 111 wherein said step of detecting further comprises:

decoding said dark trigger; and

initializing the process to prepare for characterization of said associated sample area.

113. The method of claim 111 wherein said step of detecting further comprises decoding said plurality of dark and light triggers to retrieve the address of said associated sample area.

114. The method of claim 109 wherein said trigger is a chunk address trigger.

115. The method of claim 114 wherein said chunk address trigger further comprises:

a plurality of dark and light triggers representing the binary encoding identifying the portions within said associated sample area; and

a dark trigger representing a lead-out signal.

116. The method of claim 114 wherein said step of detecting further comprises:

decoding said dark trigger; and

ending the characterization process of said associated sample area.

117. The method of claim 114 wherein said step of detecting further comprises decoding said plurality of dark and light triggers to the identifiers identifying the portions of said associated sample area.

118. The method of claim 106 wherein said action is to begin change characterization of an investigational feature.

119. A method of conducting medical assay, comprising:

encoding an optical bio-disc with a plurality of triggers;

placing an investigational feature onto a sample area of said optical bio-disc;

inserting said optical bio-disc into a optical disc drive;

using a detector in said optical disc drive to detect said one of said plurality of triggers;

decoding one of said plurality of triggers; and

initializing the characterization of said investigational feature in said sample area upon detection of one of said plurality of triggers.

120. The method of claim 119 further comprising ending the characterization of said investigational feature in said sample area upon detection of one of said plurality of triggers.

121. The method of claim 119 wherein said trigger is a physical trigger.

122. The method of claim 119 wherein said trigger is a logical trigger.

123. The method of claim 119 wherein said logical trigger is signal pattern superimposed into the operational logic of said optical disc drive.

124. The method of claim 119 wherein said trigger is a user data encoded trigger.

125. An optical bio-disc, comprising:

a sample area; and

a trigger encoded in the operational components of said optical bio-disc.

126. The optical bio-disc of claim 125 wherein said trigger is a logical trigger.

127. The optical bio-disc of claim 126 wherein said logical trigger is encoded in one or more pits of said optical bio-disc.

128. The optical bio-disc of claim 126 wherein said logical trigger is encoded in one or more lands of said optical bio-disc.

129. The optical bio-disc of claim 126 wherein said logical trigger is encoded in one or more grooves of said optical bio-disc.

130. The optical bio-disc of claim 126 wherein said logical trigger is encoded in the time code information in the modulated signal of the wobble groove of said optical bio-disc.

131. The optical bio-disc of claim 130 wherein said logical trigger is a pre-defined drive operational function according to the standard specification of said time code information.

132. The optical bio-disc of claim 130 wherein said logical trigger is encoded in the reserved bits defined by the standard specification of said time code information.

133. The optical bio-disc of claim 130 wherein said logical trigger is encoded in the undefined bits defined by the standard specification of said time code information.

134. The optical bio-disc of claim 126 wherein said optical bio-disc is of a DVD-RAM type format.

135. The optical bio-disc of claim 134 wherein said logical trigger is encoded in the header address information of said DVD-RAM type optical bio-disc.

136. The optical bio-disc of claim 135 wherein said logical trigger is used to tag an associated sample area of said optical bio-disc, whereby said associated sample area can be identified and randomly addressed.

137. The optical bio-disc of claim 135 wherein said logical trigger is encoded in the PID field of the header address.

138. The optical bio-disc of claim 126 wherein said logical trigger is encoded as a legal word recognized in a pre-existing error correction scheme.

139. The optical bio-disc of claim 126 wherein said logical trigger is encoded as a illegal word not recognized in a pre-existing error correction scheme.

140. A triggering system, comprising:

an optical bio-disc with a trigger; and

an optical disc drive including a primary decoding component configured to decode said trigger, said optical disc using the result of said primary decoding component to enact an action associated with said trigger.

141. The triggering system of claim 140 wherein said action is starting a timer in said optical disc drive.

142. The triggering system of claim 140 wherein said action is starting characterization of an investigational feature deposited on a sample area of said optical bio-disc.

143. The triggering system of claim 140 wherein said action is stopping characterization of an investigational feature deposited on a sample area of said optical bio-disc.

144. The triggering system of claim 140 wherein said action is stopping a timer in said optical disc drive.

145. The triggering system of claim 140 wherein said action is refocusing a laser in said optical disc drive.

146. The triggering system of claim 140 wherein said action is repositioning a head of said optical disc drive.

147. The triggering system of claim 140 wherein said action is changing a rotational speed of said optical bio-disc.

148. The triggering system of claim 140 wherein said trigger is a physical trigger.

149. The triggering system of claim 148 wherein said physical trigger is added on to the surface of said optical bio-disc.

150. The triggering system of claim 149 wherein said optical disc drive further comprises a detector component configured to detect said trigger.

151. The triggering system of claim 149 wherein said optical disc drive further comprises a data processor configured to process said physical trigger.

152. The triggering system of claim 140 wherein said trigger is a user data encoded trigger.

153. The triggering system of claim 152 wherein said trigger is encoded in the user data portion of said optical bio-disc.

154. The triggering system of claim 153 wherein said optical disc drive further comprises a secondary decoding component wherein said user data encoded trigger is decoded in said secondary decoding component.

155. The triggering system of claim 140 wherein said trigger is a logical trigger.

156. The triggering system of claim 155 wherein signal from said primary decoding component is monitored by said system to determine whether a logical trigger has been decoded.

157. The triggering system of claim 155 wherein said optical disc drive further comprises a secondary decoding component wherein said logical trigger is decoded in said secondary decoding component.

158. The triggering system of claim 155 wherein said logical trigger is encoded in one or more pits of said optical bio-disc.

159. The triggering system of claim 155 wherein said logical trigger is encoded in one or more lands of said optical bio-disc.

160. The triggering system of claim 155 wherein said logical trigger is encoded in one or more grooves of said optical bio-disc.

161. The triggering system of claim 155 wherein said logical trigger is encoded in one or chevron marks of said optical bio-disc.

162. The triggering system of claim 155 wherein said logical trigger is encoded in a pre-land pit pattern in said optical bio-disc.

163. The triggering system of claim 162 wherein said optical bio-disc is based on the format of a DVD−

R based disc.

164. The triggering system of claim 162 wherein said optical bio-disc is based on the format of a DVD+R based disc.

165. The triggering system of claim 162 wherein said logical trigger is encoded in the control information defined by the standard specification of said pre-land pit pattern.

166. The triggering system of claim 165 wherein said logical trigger is a standard function defined by the standard specification of said control information.

167. The triggering system of claim 165 wherein said logical trigger is encoded in the reserved bits defined by the standard specification of said control information.

168. The triggering system of claim 155 wherein said logical trigger is contained in a pit pattern coincided with a wobble groove.

169. The triggering system of claim 155 wherein said logical trigger is encoded in the modulated signal in the wobble groove of said optical bio-disc.

170. The triggering system of claim 169 wherein said optical bio-disc is based on the format of a CD-R disc.

171. The triggering system of claim 169 wherein said optical bio-disc is based on the format of a CD-RW disc.

172. The triggering system of claim 169 wherein said logical trigger is encoded in the time code information.

173. The triggering system of claim 172 wherein said logical trigger is a pre-defined drive operational function according to the standard specification of said time code information.

174. The triggering system of claim 172 wherein said logical trigger is encoded in the reserved bits defined by the standard specification of said time code information.

175. The triggering system of claim 172 wherein said logical trigger is encoded in the undefined bits defined by the standard specification of said time code information.

176. The triggering system of claim 155 wherein said optical bio-disc is of a DVD-RAM type format.

177. The triggering system of claim 176 wherein said logical trigger is encoded in the header address information of said DVD-RAM type optical bio-disc.

178. The triggering system of claim 177 wherein said logical trigger is used to tag an associated sample area of said optical bio-disc, whereby said associated sample area can be identified and randomly addressed.

179. The triggering system of claim 177 wherein said logical trigger is encoded in the PID field of the header address.

180. The triggering system of claim 177 wherein said primary decoder component is configured to read an address on said optical bio-disc, check said address against a list of pre-defined addresses to determine whether said address is a trigger, and associate an action with said address.

181. The triggering system of claim 180 wherein said action is starting characterization.

182. The triggering system of claim 180 wherein said action is stopping characterization.

183. The triggering system of claim 180 wherein said action is writing data sampling results back into an area on said optical bio-disc associated with said address.

184. The triggering system of claim 180 wherein said action is changing the operational mode of said optical disc drive.

185. The triggering system of claim 180 wherein said logical trigger is a pre-defined drive operational function according to the standard specification of said header address information.

186. The triggering system of claim 177 wherein said logical trigger is encoded in the reserved bits defined by the standard specification of said header address information.

187. The triggering system of claim 177 wherein said logical trigger is encoded in the undefined bits defined by the standard specification of said header address information.

188. The triggering system of claim 177 wherein said logical trigger is manufactured into said optical bio-disc.

189. The triggering system of claim 177 wherein said logical trigger is written into said optical disc by a software program.

190. The triggering system of claim 155 wherein said logical trigger is a signal pattern superimposed in the operational logic of said optical disc drive.

191. The triggering system of claim 190 wherein said signal pattern is derived from a set of focus information collected by said optical disc drive.

192. The triggering system of claim 190 wherein said signal pattern is derived from a set of tracking information collected by said optical disc drive.

193. The triggering system of claim 190 wherein said signal pattern is derived from a set of synchronization information without reducing the instantaneous capability of said optical disc to perform an operational function.

194. The triggering system of claim 190 wherein said signal pattern is superimposed on a reflected operational signal.

195. The triggering system of claim 190 wherein said signal pattern is superimposed on a transmitted signal.

196. The triggering system of claim 190 wherein said logical trigger is decoded in a separate decoding path while the signal of generated by said operational logic is decoded in main path.

197. The triggering system of claim 190 wherein said signal pattern is invoked by a chemical change in said optical disc assembly.

198. The triggering system of claim 197 wherein said chemical change is instantaneous.

199. The triggering system of claim 197 wherein said chemical change reacts over a period of time.

200. The triggering system of claim 197 wherein said period of time is pre-determined.

201. The triggering system of claim 197 wherein said chemical change is triggered by the addition of kinetic energy generated by the rotation of said optical bio-disc.

202. The triggering system of claim 197 wherein said chemical change causes a change in the polarization of the laser light of said optical disc drive.

203. The triggering system of claim 202 wherein said change in the polarization is a change of the shape of the polarization from a circular shape to an elliptical shape.

204. The triggering system of claim 155 wherein said logical trigger is created by adding an interference feature on said optical bio-disc to create a primary or secondary signal in the decoding path of said optical disc drive.

205. The triggering system of claim 204 wherein said interference feature creates trigger information in a transmitted signal.

206. The triggering system of claim 155 wherein said logical trigger is encoded as an unused legal word recognized in a pre-existing error-correction scheme.

207. The triggering system of claim 206 wherein said pre-existing error-correction scheme is EFM.

208. The triggering system of claim 155 wherein said logical trigger is encoded as an illegal word not recognized in a pre-existing error-correction scheme and said logical triggered is encoded a sufficient distance from any other logical trigger so that an uncorrectable error signal will not be generated in said pre-existing error-correction scheme.

209. The triggering system of claim 208 wherein said error-correction scheme is EFM.

210. The triggering system of claim 209 wherein said uncorrectable error signal is of the type C1 or C2.

211. The triggering system of claim 209 wherein said uncorrectable error signal is of the type PI or PO.

212. The triggering system of claim 140 wherein said action is enacted only for a set time period.

213. The triggering system of claim 140 wherein said action is starting a data sampling of a sample.

214. The triggering system of claim 140 wherein said action is changing an operational mode of a drive reading said optical bio-disc.

215. The triggering system of claim 140 wherein said action is increasing the power of the writing laser of said optical disc drive writing said optical bio-disc.

216. The triggering system of claim 140 wherein said action is increasing the power of the reading laser of said optical drive reading said optical bio-disc.

217. The triggering system of claim 140 wherein said action is interrupting the rotation of the optical bio-disc.

218. The triggering system of claim 140 wherein said optical bio-disc is rotated at a constant linear velocity.

219. The logical triggering system of claim 140 wherein said optical bio-disc is rotated at a constant angular velocity.

220. A triggering system, comprising:

an optical bio-disc with a plurality of user data files of known sizes; and

an optical disc drive configured to read said plurality of user data files so that a plurality of physical locations on said optical bio-disc can be accessed by reading said plurality of user data files.

221. The triggering system of claim 220 wherein said optical disc drive further comprises a secondary decoding component that consults a lookup table matching the calculated correlation between said user data files and said physical locations on said optical bio-disc.

222. The triggering system of claim 220 wherein said optical disc drive enacts an action specified by the information stored in one of said plurality of user data files.

223. The triggering system of claim 222 wherein said action is a drive function.

224. The triggering system of claim 223 wherein said drive function is the command to begin first sampling of data.

225. The triggering system of claim 224 wherein said operation function is the command to begin a second sampling of data.

226. The triggering system of claim 221 wherein a plurality of logical triggers are encoded on said optical bio-disc in conjunction with said plurality of user data files.

227. A triggering system, comprising:

an optical disc drive including an objective assembly with a focus; and

a multi-layered optical bio-disc with a trigger encoded on a first surface, said trigger used to redirect said focus of said objective assembly to a second surface of said multi-layered optical bio-disc.

228. The triggering system of claim 227 wherein said multi-layered optical bio-disc is based on the multi-layered DVD disc format.

229. A triggering system, comprising:

an optical disc drive; and

a multi-layered optical bio-disc having a first layer and a second layer producing an interference pattern that is created when a feature impressed on said second layer is projected on to a signal generated from a reading of said first layer by said optical disc drive.

230. The triggering system of claim 229 wherein said interference pattern is usable as a logical trigger.

231. The triggering system of claim 230 wherein said feature is a holographic feature.

232. The triggering system of claim 230 wherein a detector of said optical disc drive detecting said signal is mounted on a side opposite to the laser source of said optical disc drive.

233. The triggering system of claim 230 wherein a detector of said optical disc drive detecting said signal is mounted on the same side as the laser source of said optical disc drive.

234. The triggering system of claim 230 wherein said multi-layered optical bio-disc is a multi-layered DVD disc.

235. The triggering system of claim 230 wherein said feature is placed on the focal plane of said second layer.

236. The triggering system of claim 230 wherein said feature is placed distal to said second layer.

237. The triggering system of claim 230 wherein said feature is placed in the area between said second layer and said first layer.

238. An optical bio-disc, comprising;

a sample area;

a first set of triggers representing binary encoding of a spot address placed to one side of said sample area; and

a second set of triggers representing binary encoding of identifiers of the portions of said sample area placed to another side of said sample area.

239. The optical bio-disc of claim 238 wherein said first set of triggers comprises:

a dark trigger representing a lead-in signal; and

a plurality of dark and light triggers representing the binary address of said associated sample area.

240. The optical bio-disc of claim 238 wherein said second set of triggers further comprises:

a plurality of dark and light triggers representing the binary encoding identifying the portions within said associated sample area; and

a dark trigger representing a lead-out signal.

241. The optical bio-disc of claim 238 further comprises:

a first light trigger placed between said first set of triggers and said sample area; and

a second light trigger placed between said second set of triggers and said sample area.

242. A secured optical disc reading system, comprising:

an optical disc with a physical pattern placed on said optical disc, said physical pattern representing a encoded data key; and

an optical disc drive configured to read said optical disc, said drive enabled to detect said physical pattern, decode said physical pattern to retrieve said data key, attempt to match said data key with another security key, and read said optical disc if said data key matches with said another security key.

243. A triggering system, comprising:

a multi-layered optical bio-disc with two layers adapted to receive a feature placed on a second layer thereof; and

an optical disc drive with a primary laser and a secondary laser, said secondary laser implemented to project an image of said feature from said second layer on to a signal generated from the light of said primary laser reading said first layer of said multi-layered optical bio-disc, so that said detected signal is used for logical triggering.