AUDIO ALARM SYSTEM

• US 3,858,195 A
• Filed: 08/28/1973
• Issued: 12/31/1974
• Est. Priority Date: 08/28/1973
• Status: Expired due to Term

• Current Assignee: John Paul Hannigan, Joseph Gregg Jr
• Original Assignee: John Paul Hannigan, Joseph Gregg Jr
• Inventors: Gregg, Joseph Jr., Hannigan, John Paul
• Primary Examiner(s): Yusko, Donald J.
• Assistant Examiner(s): Lange, Richard P.
• Application Number:
  US05/392,325
• Time in Patent Office: 490 Days
• Field of Search: 340/31R,311,221,328,224,410,411 360/12,6
• US Class Current: 360/12
• CPC Class Codes: H04M 11/045 using recorded signals, e.g. speech

Abstract

An alarm control circuit couples a plural track tape player with a plural station paging intercom system to broadcast a plurality of different messages stored on plural track tape, in response to activation of corresponding sensors to which the circuit is connected. Facilities for testing the circuit at one location with minimal disturbance of the paging system, is provided.

Claims

1. In combination with a record player having a player head displaceable relative to a plurality of tracks on a record medium from which different messages are reproduced, a plurality of sensors, a source of voltage, at least one self-latching circuit connected to said source of voltage for generating an intermittent player operating signal in response to actuation of one of the sensors, non-latching circuits connected to said source of voltage for generating continuous player operating signals in response to actuation of the other of the sensors, means for transmitting said signals to the record player to select the track at which the player head is positioned, interlock means for disabling the non-latching circuits in response to said intermittent player operating signal, reset means connected to said source of voltage for resetting the selflatching circuit in response to reversal in polarity of the source of voltage, and indicating means connected to said selflatching circuit for monitoring continuity thereof in response to said reversal in polarity.

2. In combination with a paging system adapted to establish intercommunication between a plurality of stations and a plural track record player connected to said paging system for reproducing a plurality of messages from different tracks of a record medium in response to detection of different corresponding conditions by a plurality of sensors;

an audio alarm control system for regulating transmission of said messages to the paging system, including a plurality of sensing circuits connecting the sensors to the player for initating operation thereof, priority override means connected to said sensing circuits and responsive to activation of a selected one of the sensors for disabling the sensing circuits associated with the other of the sensors, the sensing circuits associated with the other of the sensors being interconnected in parallel for alternatively initiating operation of the player, one of the sensing circuits associated with said selected one of the sensors being connected to the player independently of the other of the sensing circuits and latching means connected only to said one of the sensing circuits for maintaining the player in operation following activation of said selected one of the sensors.

3. The combination of claim 2 including a source of electrical energy energizing the sensing circuits, polarity reversing means connecting the source to the sensing circuits for resetting said one of the sensing circuits in response to reversal of polarity of the source, means connected to said other of the sensing circuits for deenergization thereof in response to energization of said one of the sensing circuits, and indicator means activated in response to said polarity reversal for signifying circuit continuity of said one of the sensing circuits.

4. The combination of claim 3 including test means for simultaneously initiating operation of the record player in by-pass relation to the sensing circuits and localizing reproduction of a message in the paging system.

5. The combination of claim 4 including audio cut-off control means for disconnecting the player from the paging system in response to transmission of audio signals therethrough.

6. The combination of claim 5 including timing means for intermittantly interrupting energization of said one of the sensing circuits to conserve energy expended during operation of the player in response to activation of said selected one of the sensors.

7. The combination of claim 2 including test means for simultaneously initiating operation of the record player in by-pass relation to the sensing circuits and localizing reproduction of a message in the paging system.

8. The combination of claim 2 including audio cut-off control means for disconnecting the player from the paging system in response to transmission of audio signals therethrough.

9. The combination of claim 3 including timing means for intermittantly interrupting energization of said one of the sensing circuits to conserve energy expended during operation of the player in response to activation of said one of the sensors.

10. The combination of claim 2 including timing means for intermittantly interrupting energization of said one of the sensing circuits to conserve energy expended during operation of The player in response to activation of said one of the sensors.

11. In combination with a paging system adapted to establish intercommunication between a plurality of stations and a plural track record player connected to said paging system for broadcasting a plurality of messages from different tracks of a record medium in response to detection of different corresponding conditions by a plurality of sensors;

an audio alarm control system for regulating transmission of said messages to the paging system, including a plurality of sensing circuits connecting the sensors to the player for initiating operation thereof, a source of electrical energy for energizing the sensing circuits, polarity reversing means connecting the source to the sensing circuits for resetting a selected one of the sensing circuits in response to reversal of polarity of the source, interlock means connected to said other of the sensing circuits for preventing energization thereof in response to energization of said selected one of the sensing circuits, and indicator means activated in response to said polarity reversal for signifying circuit continuity of said selected one of the sensing circuits.

12. The combination of claim 11 including test means for simultaneously initiating operation of the record player in by-pass relation to the sensing circuits and localizing reproduction of a message in the paging system.

13. The combination of claim 11 including timing means for intermittantly interrupting energization of said selected one of the sensing circuits to conserve energy expended during operation of the player in response to activation of said one of the sensors.

14. The combination of claim 2 wherein said record player includes a player head, means for displacing said player head to different positions operatively aligned with said tracks on the record medium, position sensing means connecting the record player to the sensing circuits for operating the displacing means to sequentially change the tracks with which the player head is aligned, and means responsive to activation of said sensors for selecting the tracks at which operation of the displacing means stops.