Patents
The following is a non-exhaustive list of U.S. patents applicable to the GTD-5 EAX design
- 4569017 Duplex central processing unit synchronization circuit
- 4757494 Method of Generating Additive Combinations for PCM voice samples
- 4835767 Additive PCM speaker circuit for a time shared conference arrangement
- 4466093 Time Shared Conference Arrangement
- 4509169 Dual rail network for a remote switching unit
- 4466094 Data capture arrangement for a conference circuit
- 4740960 Synchronization arrangement for time multiplexed data scanning circuitry
- 4580243 Circuit for duplex synchronization of asynchronous signals
- 4466092 Test data insertion arrangement for a conference circuit
- 4740961 Synchronization circuitry for duplex digital span equipment
- 5226121 Method of bit rate de-adaption using the ECMA 102 protocol
- 4532624 Parity checking arrangement for a remote switching unit network
- 4509168 Digital remote switching unit
- 4514842 T-S-T-S-T Digital switching network
- 5140616 Network independent clocking circuit which allows a synchronous master to be connected to a circuit switched data adapter
- 4402077 Dual rail time and control unit for a duplex T-S-T-digital switching system
- 4468737 Circuit for extending a multiplexed address and data bus to distant peripheral devices
- 4374361 Clock failure monitor circuit employing counter pair to indicate clock failure within two pulses
- 4399369 Dual rail time and control unit for a duplex T-S-T-digital switching system
- 4498174 Parallel cyclic redundancy checking circuit
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