Computerized multistandard, field-convertible, multiregional/multiservice, remote controllable, remote programmable mobile two-way radio system with digital serial bus link, built-in programmer and autodiagnostics

• US 5,020,135 A
• Filed: 03/27/1987
• Issued: 05/28/1991
• Est. Priority Date: 03/27/1987
• Status: Expired due to Fees

• Current Assignee: Teletec Corporation
• Original Assignee: Teletec Corporation
• Inventors: Brown, Thomas A., Hsu, Ming C., Kasparian, Kaspar, Ide, John D., Fussell, John P., Rogers, Aaron S.
• Primary Examiner(s): Safourek, Benedict V.
• Application Number:
  US07/030,743
• Time in Patent Office: 1,523 Days
• Field of Search: 455/73, 455/75, 455/76, 455/77, 455/78, 455/79, 455/91, 455/31, 455/33, 455/84, 455/90, 381/91, 381/155, 381/104, 381/122, 379/202, 375/25
• US Class Current: 455/76
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A Computerized Mobile Two-Way Radio System is provided having microprocessor enhanced capabilities and versatility for wide area/multiple region two-way radio networks with multiple categories of users and adaptability to multiple international standards and mobile radio equipment configurations. The main elements of the system consist of (1) a microprocessor-based Control Unit, (2) a Digital Serial Interface/Link and (3) a microprocessor-based Convertible Transceiver Unit. The Control Unit provides many facilities and capabilities for the operator and the system in compact form. The Interface/Link provides a two-way path for serial data consisting of digitized audio and digital command and status signals. The Transceiver Unit is designed for operation and control over the Digital Serial Interface/Link. The system allows the addition of many options, capabilities and peripheral/extenal devices including builtin front panel or remote programmability, built-in autodiagnostics, remote takeover of controls, remote memory-dump, remote diagnostics, program cloning capability, voting on all channels, 512 channel (expandable) programmability within 16 groups (expandable), triple levels of priority within each group (expandable), supreme over-ride channel, RS232C Interface Ports for data applications, phone patch for voice and for world-wide telephone linkable devices and other capabilities.

Claims

1. A multipurpose two-way radio comprising:

(a) a Control Unit, said Control Unit having a first microprocessor, and a multiplexer for serializing digitized signals including digitized audio and a demultiplexer for deserializing digitized signals including digitized audio;

(b) a Transceiver Unit having a second microprocessor, radio function modules and a multiplexer for serializing digitized signals including digitized audio and a demultiplexer for deserializing digitized signals including digitized audio;

(c) programmable software for imparting versatility to said radio, said programmable software operating at least said first or said second microprocessor;

(d) a multiplexed full duplex serial interface providing two-way communications for digital signals including said digitized audio between said Control Unit and said Transceiver Unit; and

(e) means for transmitting and receiving said digitized signals including digitized audio over said multiplexed full duplex serial interface.

2. The multipurpose two-way radio of claim 1 further comprising a control panel disposed in said Control Unit.

3. The multipurpose two-way radio of claim 2 wherein said control panel includes a plurality of command and mode switches;

function switches and a display connected to said first microprocessor.

4. The multipurpose two-way radio of claim 1 wherein said first microprocessor in said Control Unit and said second microprocessor in said Transceiver Unit include digital memory.

5. The multipurpose two-way radio of claim 2 wherein said digitized signals further comprise control signals, including control instructions.

6. The multipurpose two-way radio of claim 5 wherein said Control Unit further comprises means for generating said control signals and said Transceiver Unit further comprising means for executing said control instructions.

7. The multipurpose two-way radio of claim 6 further comprising an input/output port connected to said Control Unit microprocessor and said control panel, said input/output port interchanging digital information with said control panel.

8. The multipurpose two-way radio of claim 1 wherein said multiplexed full duplex serial interface has one or more optical fibers.

9. The multipurpose two-way radio of claim 1 or 8 wherein said multiplexed full duplex serial interface is interfaced with said multiplexer in said Control Unit to form a digital frame for serial transmission over said multiplexed full duplex serial interface, said multiplexer in said Control Unit having at least one digital data input and a digital audio word input and also interfaced with said multiplexer in said Transceiver Unit for receiving a digital frame from said multiplexed full duplex serial interface and separating said digital data input and said digitized audio word input.

10. The multipurpose two-way radio of claim 8 wherein said multiplexer and said demultiplexer in said Control Unit and said multiplexer and said demultiplexer in said Transceiver Unit include means for converting and reconverting audio word to analog audio.

11. The multipurpose two-way radio of claims 1 or 2 wherein said software, in cooperation with said first or said second microprocessor creates transmit and receive messages in digital frames for transmission over said multiplexed full duplex serial interface.

12. The multipurpose two-way radio of claim 1 or 2 further comprising an electronically programmable read only memory device such as a masked ROM.

13. The multipurpose two-way radio of claim 1 further comprising an electronically programmable memory device such as an EE prom or non-volatile static RAM.

14. The multipurpose two-way radio of claim 1 or 2 further comprising optional function modules connected to said second microprocessor in said Transceiver Unit.

15. The multipurpose two-way radio of claim 14 wherein said optional function modules are controlled by said software.

16. The multipurpose two-way radio of claim 15 wherein said optional function modules include function modules consisting of one or more modules selected from the group consisting of a frequency shift keying module, a sequential data module, a dual tone multiple frequency module, a continuous tone coded squelch system module, a data modem module and a voice privacy module.

55. The multipurpose two-way radio of claim 1 further comprising a Manchester II encoder and decoder disposed in said control unit and a Manchester II encoder and decoder disposed in said Transciever Unit.

17. A two-way mobile radio system comprising:

(a) a Control Unit, said Control Unit having a first central processing unit with digital memory and an interface/serializer;

(b) a radio frequency unit, said radio frequency unit having function modules and a second central processing unit with digital memory and an interface/deserializer;

(c) programmable software cooperating with said first or said second central processing unit;

(d) a bidirectional digital serial interface connecting said interface/serializer to said interface/deserializer said serialzer having at least one digital data input and digital audio word input to provide the communication of both parametric and non parametric data and signals between said interface/serializer and said interface/deserializer over said bidirectional digital serial interface.

18. The two-way mobile radio system of claim 17 wherein both said Control Unit and Transceiver Unit include programmable software and wherein said bidirectional digital serial interface is bidirectionally symmetrical for carrying both digital data information and digitized audio.

19. The two-way mobile radio system of claim 18 wherein said bidirectional digital serial interface is a two-way Digital Serial Bus System connecting said interface/serializer and said interface/deserializer to provide a Time Division Multiplexing/Pulse Code Modulation.

20. The two-way mobile radio system of claim 19 wherein said Digital Serial Bus System provides intercommunication between said Control Unit and said Transceiver Unit.

21. The two-way mobile radio system of claim 17 wherein multi-standard capabilities are provided through the use of said programmable software in cooperation with said function modules.

22. The two-way mobile radio system of claim 19 wherein said software adds or enhances control and function aspects to the radio system/infrastructure to provide interaction between said Control Unit and said Transceiver Unit.

23. The two-way mobile radio system of claim 22 wherein said software adds or enhances one or more capabilities selected from the group consisting of channel attributes, channel organization, channel priorities, multiple operating modes, commands, functions, function setting ranges and provisions, function control protocols, overall coordination of functions and control protocols, scanning, scan related protocols, generation and recognition of various tones and tone sequences, automatic identification, sending messages, receiving messages, transpond function, automatic responses, voting, built-in programming, programming protocols, program cloning, remote programming, remote takeover, remote diagnostics, built-in diagnostics, inhibits, `enables`, manipulation of digital audio/data for encryption/decryption, display, displayed information, alphabetic and/or numeric presentations, `housekeeping` functions, interaction with and between microprocessors, interactions between the Control Unit and the Transceiver Unit, multiple transceiver control, interaction, coordination and control of peripherals, interaction and control of/with encoders and decoders, interaction and responses to received signals and control of characteristics, capabilities, facilities and attributes that are achieved through software and/or software control.

24. The two-way mobile radio system of claim 22 wherein said software provides versatility to meet network and system changes growth, changing operational requirements, special requirements, special protocols, customer preferences, through software adaptation, software modification, software expansion, software commands, software algorithmic changes, software limiting, software restructuring and other software changes.

25. The two-way mobile radio system of claim 22 wherein said software provides default infrastructure of channel and operating attributes.

26. The two-way mobile radio system of claim 17 wherein said second central processing unit in said radio frequency unit provides means for performing autodiagnostics on the two-way mobile radio.

27. The two-way mobile radio system of claim 17 wherein said Control Unit includes an RS232C Interface Port for communications with peripheral devices.

28. The two-way mobile radio system of claim 17 wherein said bidirectional digital serial interface provides a two or four conductor communications medium between said Control Unit and said radio frequency unit.

29. The two-way mobile radio system of claim 28 wherein said two or four conductor communication medium is an Optical Fiber Control Cable.

30. The two-way mobile radio system of claim 17 further comprising optional function modules connected to said first central processing unit controlled by said software.

31. The two-way mobile radio system of claim 17 wherein said central processing unit provides means for transmitting a high priority signal to headquarters upon operation of a footswitch or the reception of an alarm signal from a portable `Lifeline` transmitter.

32. A two-way mobile radio system comprising:

(a) a first microprocessor disposed in a Control Unit;

(b) a first multiplexer connected to said first microprocessor providing serialized and deserialized digitized signals including digitized audio;

(c) a second microprocessor disposed in a Transceiver Unit;

(d) a second multiplexer connected to said second microprocessor providing serialized and deserialized digitized signals including digitized audio;

(e) programmable software operating said first or said second microprocessor; and

(f) a bidirectional digital serial interface connecting said first multiplexer to said second multiplexer providing two way communication of digitized signals including digitized audio bidirectionally between said first multiplexer and said second multiplexer.

33. The two-way mobile radio system of claim 32 further comprising a control panel disposed in said Control Unit.

34. The two-way mobile radio system of claim 33 wherein said first microprocessor and said programmable software provide means for up/down setting volume and squelch of the two-way radio in discrete digital steps with pseudoanalog and digital display confirmations of settings.

35. The two-way mobile radio system of claim 33 wherein said first microprocessor and said programmable software provide operating modes including:

Manual, Manual with Priority, Scan, Scan with Priority and Voting including means for displaying modes.

36. The two-way mobile radio system of claim 33 wherein said first microprocessor and programmable software provides means for controlling such functions as setting value or control of R. F. output Levels, Squelch Steps/Levels, Group of Channels, Public Address Facility for mike audio, Public Address Facility for received audio, control of Auxiliary devices, such as for alerting of incoming calls, Codes for encryption selected, Codes for operating external devices, Codes for personal identification, Digital Status Messages, Selective Calling of other mobile or fixed stations, single or multilevel Privacy/encryption system SITE (CTCSS) or other tones, Telephone Facility and provisions for other special requirements.

37. The two-way mobile radio system of claim 33 wherein said first microprocessor and said programmable software in combination provide an enhanced send function.

38. The two-way mobile radio system of claim 37 further comprising one or more optional function modules selected from the group consisting of a frequency shift keying module, a sequential data module, a dual tone multiple frequency module, a continuous tone coded squelch system module, a data modem module and a voice privacy module.

39. The two-way mobile radio system of claim 33 wherein said programmable software provides one or more functions selected from a group consisting of routine `housekeeping` functions, responding to signals from said Transceiver Unit, responding to other internal signals, responding to user initiated commands, responding to remote takeover command protocols, responding to remote programming of radio, performing continuous diagnostics routines, responding to faults, complying with external programming, complying with front panel programming routines, accomplishing voting, accomplishing scanning, recognizing priority channels, controlling alphanumeric display, recognizing different uses of same buttons, providing CTCSS tones, providing encryption/decryption, providing common supreme override channel for all programmed channels, providing user interface assistance during programming, responding to emergency signals, controlling operating modes, providing confirmation of settings, timing various functions, performing selective calling, providing various automatic routines, inhibiting functions or routines, as required, controlling/supervising peripheral devices, affecting responses of controls, controlling display annunciators, controlling other indicators, maintaining, updating and supervising channel attributes infrastructure, supervising phone function, maintaining messages from headquarters, supervising program access, performing automatic transponding and performing memory dump upon request.

40. The two-way mobile radio system of claim 33 wherein said Digital Serial Interface/Link provides for networking.

41. The two-way mobile radio system of claim 40 wherein said networking provides for the control of multiple Transceiver Units in the same or different frequency bands.

42. The two-way mobile radio system of claim 32 further comprising modular electromechanical design to provide for conversion.

43. The two-way radio system of claim 42 wherein said modular electromechanical design includes a cover having means for converting said radio from simplex operation to duplex operation and vice versa.

44. The two-way mobile radio system of claim 42 or 43 wherein said modular electromechanical design includes a cover having means for converting said radio from one power to another.

45. The two-way mobile radio system of claim 42 wherein said modular electromechanical design includes a connecting means for converting the two way radio from an integrated unit to an extended controlled version.

46. The two-way mobile radio system of claim 33 further comprising a second microprocessor-based Control Unit and a second control panel disposed in said second microprocessor-based Control Unit to provide additional control facilities to control said Transciever Unit.

47. The two-way mobile radio system of claim 32 further comprising a Remote Instruction Decoder in the two way radio to provide remote programming to said first or said second microprocessor.

48. The two-way mobile radio system of claim 47 wherein said remote programming is a means for a remote reprogramming of said radio.

49. The two-way mobile radio system of claim 47 wherein said remote programming provide a means for erasing said programmable software in said radio.

50. The two-way mobile radio system of claim 47 further comprising a Remote Instruction Decoder.

51. The two-way mobile radio system of claim 50 wherein said Remote Instruction Encoder and Remote Instruction Decoder include facilities for remote diagnostics and interrogation of said radio.

52. The two-way mobile radio system of claim 47 wherein said Remote Instruction Decoder includes facilities for taking over radio control functions normally controlled by the operator.

53. The two-way mobile radio system of claim 32 wherein said programmable software provides voting, said voting including a scan of received signals which are compared to a preset attribute reference and where, upon receipt of a signal meeting referenced attribute qualifications, said signal is determined acceptable and a scan function ceases to allow processing of said signal into information desired;

said voting, however, continuing with subsequent scan of other predetermined channels with priority requirement now being the receipt of a signal that compares more favorably with respect to the last accepted signal, the process continuing during two-way communications, with a higher priority predetermined channel overriding and being deemed acceptable over all other channels being polled through scanning.

54. A programmable software based two way radio comprising:

(a) a first microprocessor;

(b) a first multiplexer connected to said first microprocessor for serializing and deserializing both parametric and non parametric digital signals;

(c) a second microprocessor;

(d) a second multiplexer connected to said second microprocessor for serializing and deserializing both parametric and non parametric digital signals;

(e) programmable software operating said first or said second microprocessor;

(f) a multiplexed full duplex serial interface connecting said first multiplexer to said second multiplexer to provide two way communication of said parametric and non parametric digital signals between said first multiplexer and said second multiplexer; and

(g) means for transmitting and receiving serialized parametric and non parametric digital signals over said multiplexed full duplex serial interface.