Simultaneous communication of analog and binary information in a single frame of a pulse count modulated digital signal
US4346380A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Apr 15, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1676
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communication system for providing both analog information pulses and digital information pulses in a single frame of a pulse train, including circuitry for sequentially multiplexing and modulating a first given number "m" of analog information input channels to provide "m" analog information pulses in each frame of the pulse train to convey information respectively representative of the analog information in the analog information input channels; and circuitry for modulating a second given number "n" of binary information input channels to provide a variable number of digital information pulses and for multiplexing the variable number of digital information pulses in each frame of the pulse train sequentially to the analog information pulses, wherein the variable number of digital information pulses is within a range of 2.sup.n pulses to convey information respectively representative of the binary information in the "n" binary information input channels. A system for producing analog information signals and binary information signals from such a pulse train includes a binary counter for counting the number of information pulses in each frame of the pulse train; "m" gates coupled…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.