System and method for patient controlled communication of DICOM protected health information

• US 20050237776A1
• Filed: 03/19/2004
• Published: 10/27/2005
• Est. Priority Date: 03/19/2004
• Status: Abandoned Application

• Current Assignee: MedCommons, Inc.
• Original Assignee: MedCommons, Inc.
• Inventors: Cottingham, Hugh V., Doyle, Sean, Gropper, Adrian, Donner, William L.
• Application Number:
  US11/089,567
• Publication Number:
  US 20050237776A1
• Time in Patent Office: Days
• US Class Current: 365/1
• CPC Class Codes: G06F 30/367 Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
• CPC Class Codes: H05K 1/0237 High frequency adaptations H05K1/0216 takes precedence
• CPC Class Codes: H05K 1/115 Via connections; Lands around holes or via connections H05K1/112 takes precedence
• CPC Class Codes: H05K 2201/09236 Parallel layout
• CPC Class Codes: H05K 3/0005 for designing circuits by computer

Abstract

A method for verifying coupling in a differential via pair group includes identifying a differential via pair group in a design database and identifying a victim differential via pair in the differential via pair group. All other differential via pairs in the differential via pair group are identified as culprit differential pairs. The differential via pair group includes at least one culprit differential via pair. The method also includes obtaining a total coupling threshold level and calculating a total coupling factor for the victim differential via pair within the differential via pair group. The method also includes flagging the victim differential via pair if the calculated total coupling factor exceeds the total coupling threshold level.

Claims

1. A computer-implemented method for verifying coupling in a differential via pair group, comprising:

identifying said differential via pair group in a design database;

identifying a victim differential via pair in said differential via pair group, all other differential via pairs in said differential via pair group being culprit differential pairs, wherein said differential via pair group comprises at least one culprit differential via pair;

obtaining a total coupling threshold level;

calculating a total coupling factor for said victim differential via pair within said differential via pair group; and

flagging said victim differential via pair if said calculated total coupling factor exceeds said total coupling threshold level.

2. The method of claim 1, said flagging comprising storing a coupling design rule check in said design database for said victim differential via pair.

3. The method of claim 1, wherein said identifying said differential via pair group comprises specifying a plurality of differential via pairs in said design database to by included in said differential via pair group.

4. The method of claim 1, wherein said identifying said differential via pair group comprises establishing a window around said victim differential via pair, wherein all differential via pairs within said window are included in said differential via pair group during said identifying said differential via pair group.

5. The method of claim 4, wherein said window comprises a two-dimensional cross-section of a circuit layout defined in said design database.

6. The method of claim 5, wherein said window is oriented substantially perpendicular to said victim differential via pair.

7. The method of claim 4, said establishing said window comprising reading a distance from said victim differential via pair in which neighboring differential via pairs will be included in said differential via pair group.

8. The method of claim 1, wherein said calculating said total coupling factor comprises calculating said total coupling factor between said at least one culprit differential via pair and said victim differential via pair.

9. The method of claim 1, wherein said at least one culprit differential via pair comprises a plurality of culprit differential via pairs, and wherein said calculating said total coupling factor comprises:

calculating a plurality of coupling factors, one for each of said plurality of coupling factors, each of said plurality of coupling factors representing a coupling level between a unique one of said plurality of culprit differential via pairs and said victim differential via pair; and

combining said plurality of coupling factors to form said total coupling factor.

10. The method of claim 9, said calculating said plurality of coupling factors further comprising numerically calculating a plurality of capacitance values between said victim differential via pair and each of said plurality of culprit differential via pairs.

11. The method of claim 9, said combining said plurality of coupling factors to form said total coupling factor comprising summing an absolute value of each of said plurality of coupling factors, said total coupling factor comprising a worst case coupling factor.

12. The method of claim 1, wherein said calculating said total coupling factor comprises identifying a configuration of polarity assignments for said differential via pair group which maximizes said total coupling factor, said total coupling factor comprising a worst case coupling factor.

13. An apparatus for checking a coupling level within a differential via pair group, comprising:

a. at least one computer readable medium; and

b. computer readable program code stored on said at least one computer readable medium, said computer readable program code comprising;

i. program code for identifying a victim differential via pair in a design database;

ii. program code for calculating a total coupling value between said victim differential via pair and at least one culprit differential via pair in said design database; and

iii. program code for flagging said victim differential via pair if said total coupling factor is not within a predetermined range.

14. The apparatus of claim 13, further comprising program code for reading said predetermined range.

15. The apparatus of claim 13, said computer readable program code further comprising program code for comparing said total coupling factor with said predetermined range to determine if said total coupling factor is unacceptable.

16. The apparatus of claim 13, further comprising program code for identifying a plurality of culprit differential via pairs in said design database, said victim differential via pair and said plurality of culprit differential via pairs forming said differential via pair group.

17. The apparatus of claim 16, said program code for calculating said total coupling value comprising program code for calculating a plurality of coupling values between ones of said plurality of culprit differential via pairs and said victim differential via pair, and program code for combining said plurality of coupling values to form said total coupling value.

18. The apparatus of claim 17, said program code for combining comprising program code for summing an absolute value of each of said plurality of coupling values, said total coupling factor comprising a worst case coupling factor.

19. The apparatus of claim 16, said program code for identifying said plurality of culprit differential via pairs comprising program code for establishing a window around said victim differential via pair within which all differential via pairs except said victim differential via pair are identified as culprit differential via pairs.

20. The apparatus of claim 13, said program code for flagging said victim differential via pair comprising program code for placing an error indicator in said design database.

21. The apparatus of claim 13, wherein at least a portion of said computer readable program code comprises a script for execution in a design environment of an electronic circuit design automation software application.

22. An apparatus for verifying differential via pair coupling within a differential via pair group, comprising:

means for identifying a victim differential via pair and a plurality of culprit differential via pairs from a circuit design database, said victim differential via pair and said plurality of culprit differential via pairs comprising said differential pair group;

means for calculating a total coupling value from said culprit differential via pairs to said victim differential via pair; and

means for flagging said victim differential via pair if said total coupling factor exceeds a range identified as acceptable.

23. The apparatus of claim 23, wherein electrical conductors in said differential via pair group are assigned polarities during said calculating, and wherein said total coupling value comprises a worst case coupling value that is maximized for any possible arrangement of polarity assignments.