Processor-to-processor communications protocol for a public serv

Details Processor-to-processor communications protocol for a public serv Processor-to-processor communications protocol for a public serv

1987-08-14

1989-05-30

Lev, Robert

Telephonic communications

Audio message storage, retrieval, or synthesis

455 14, 379 58, H04M 1100

Patent

active

048357316

ABSTRACT:
A downlink between a communications dispatch console and a digitally trunked radio repeater system site controller efficiently transfers message data between the site controller and the console over a standard 9.2 kilobit per second landline. A downlink trunking card identical in structure to trunking cards used in the preferred embodiment system for RF channel signal processing interfaces the site controller with the landline link. A similar trunking card on the other side of the landline link interfaces the dispatch console processor with the landline link. Message protocol and format is translated between the site controller and the landline link and between the landline link and the dispatch console. Data buffering at each end of the landline link maximizes data transfer rate over the landline, and in addition, a priority scheme insures that more important messages are transmitted over the downlink before less important messages. Retransmit-until-acknowledged protocol is used to insure reliable message transfer--and also to permit receiving units along the downlink to slow down transmitting units in order to avoid message traffic blockage.

REFERENCES:
patent: 3292178 (1966-12-01), Magnuski
patent: 3458664 (1969-07-01), Adlhoch et al.
patent: 3517312 (1970-06-01), Yamato et al.
patent: 3548108 (1970-12-01), Yamato et al.
patent: 3571519 (1971-03-01), Tsimbidis
patent: 3696210 (1972-10-01), Peterson et al.
patent: 3801956 (1974-04-01), Braun et al.
patent: 3906166 (1975-09-01), Cooper et al.
patent: 3936616 (1976-02-01), DiGianfilippo
patent: 3944723 (1976-03-01), Fong
patent: 3970801 (1976-07-01), Ross et al.
patent: 4001693 (1977-01-01), Stackhouse et al.
patent: 4010327 (1977-03-01), Kobrinetz et al.
patent: 4012597 (1977-03-01), Lynk, Jr. et al.
patent: 4022973 (1977-05-01), Stackhouse
patent: 4027243 (1977-05-01), Stackhouse
patent: 4029901 (1977-06-01), Campbell
patent: 4100533 (1978-06-01), Napolitano et al.
patent: 4128740 (1978-12-01), Graziano
patent: 4131849 (1978-12-01), Freeburg et al.
patent: 4184118 (1980-01-01), Cannalte et al.
patent: 4231114 (1980-10-01), Dolikian
patent: 4267593 (1981-05-01), Craiglow
patent: 4309772 (1982-01-01), Kloker et al.
patent: 4312070 (1982-01-01), Coombes et al.
patent: 4312074 (1982-01-01), Pautler et al.
patent: 4322576 (1982-03-01), Miller
patent: 4326264 (1982-04-01), Cohen et al.
patent: 4328578 (1982-05-01), Bell et al.
patent: 4339823 (1982-07-01), Predina et al.
patent: 4347625 (1982-08-01), Williams
patent: 4360927 (1982-11-01), Bowen et al.
patent: 4369443 (1983-01-01), Giallanza et al.
patent: 4382298 (1983-05-01), Evans
patent: 4398265 (1983-08-01), Puhl et al.
patent: 4399555 (1983-08-01), MacDonald et al.
patent: 4400585 (1982-08-01), Kamen et al.
patent: 4409687 (1983-10-01), Berti et al.
patent: 4418425 (1983-11-01), Fennel, Jr. et al.
patent: 4422171 (1983-12-01), Wortley
patent: 4430742 (1984-02-01), Milleker et al.
patent: 4430755 (1984-02-01), Nadir et al.
patent: 4433256 (1984-02-01), Dolikian
patent: 4434323 (1984-02-01), Levine et al.
patent: 4449246 (1984-05-01), Seiler et al.
patent: 4450573 (1984-05-01), Noble
patent: 4485486 (1984-11-01), Webb et al.
patent: 4511958 (1985-04-01), Funk
patent: 4549297 (1985-10-01), Nishimoto
patent: 4562572 (1985-12-01), Goldman et al.
patent: 4578815 (1986-05-01), Persinotti
patent: 4599490 (1983-12-01), Cornell et al.
patent: 4599598 (1986-07-01), Komoda et al.
patent: 4601035 (1986-07-01), Marzec et al.
patent: 4612415 (1986-09-01), Zdunek et al.
patent: 4637022 (1987-01-01), Burke et al.
patent: 4654655 (1987-03-01), Kowalski
patent: 4654867 (1987-03-01), Labedz et al.
patent: 4672601 (1987-06-01), Ablay
patent: 4672655 (1987-06-01), Koch
patent: 4672658 (1987-06-01), Kavehrad et al.
patent: 4677656 (1987-06-01), Burke et al.
patent: 4694473 (1987-09-01), Etoh
patent: 4698805 (1987-10-01), Sasuta et al.
patent: 4712214 (1987-12-01), Meltzer et al.
patent: 4712229 (1987-12-01), Nakamura
patent: 4730348 (1988-03-01), MacCrisken
patent: 4759016 (1988-07-01), Otsuka
patent: 4777652 (1988-10-01), Stolarczyk
patent: 4785448 (1988-11-01), Reichert et al.
Federal Information Processing Standards, Pub. No. 46, Data Encryption Standard, U.S. Dept. of Comm, NTIS, (5285 Port Royal Rd., Springfield, Va. 22161.
"Voice and Data Transmission", Arrendondo, Teggeler and Smith, Bell Systems Technology Journal, vol. 58, No. 1, Jan. 1978, pp. 97-122.
"Basic Interfacing Techniques with Extensions," Version 2.0, Hewlett-Packard Co., Chapter 12, pp. 197-256.
"Motorola Data Communications Systems, " Sec. 11.0, Sep. 3, 1985.
"Software Specification for CB 6001", Version V1.0, dated Mar. 28, 1985.

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