Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1989-09-29
1992-08-18
Dwyer, James L.
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
455 331, H04M 1100, H04M 704
Patent
active
RE0340340
ABSTRACT:
The cellular telephone data communication system and method involves the use of a mobile data processing interface and a cooperating static data processing interface to effectively transmit data over a cellular telephone system. Each data processing interface includes a processor which operates in the transmitting mode to add an error control correction data format to data received from an external data source. The data is divided into packets and provided to a modem which is uniquely operated to eliminate the action of the modem scramble system and to remain active in spite of a carrier signal loss. The modem is deactivated or disconnected by a disconnect signal from the processor, and when carrier signal loss occurs, this disconnect signal is provided only after the lapse of a delay period without the resumption of the carrier signal. The error control correction data format causes a receiver to evaluate the received data for error and to retransmit an acknowledgment signal for each acceptable packet of received data. In the absence of an acknowledgment signal, the processor will again provide a data packet to the modem for retransmission. Also, the processor will determine the frequency of error in the received data from the acknowledgment signals and subsequently adjust the data packet size in accordance with this error frequency.
REFERENCES:
patent: 3657700 (1972-04-01), Lutzker
patent: 4178476 (1979-12-01), Frost
patent: 4337376 (1981-06-01), Gruenberg
patent: 4414661 (1983-11-01), Karlstrom
patent: 4488002 (1984-12-01), Seibel
patent: 4503288 (1985-03-01), Kessler
patent: 4524244 (1985-06-01), Faggin et al.
patent: 4525861 (1985-06-01), Freeburg
patent: 4545071 (1985-10-01), Freeburg
patent: 4549308 (1985-10-01), LoPinto
patent: 4558178 (1985-12-01), Yasuda et al.
patent: 4562572 (1985-12-01), Goldman et al.
patent: 4562872 (1985-12-01), Goldman et al.
patent: 4578537 (1986-03-01), Faggin et al.
patent: 4637022 (1987-01-01), Burke et al.
patent: 4654867 (1987-03-01), Labedz et al.
patent: 4660218 (1987-04-01), Hashimoto
patent: 4691314 (1987-09-01), Bergins et al.
patent: 4694473 (1987-09-01), Etoh
Hayes Stack Smartmodem Owner's Manual, Hayes Microcomputer Products, Inc., 1981.
"Firm Unveils Cellular Bridge", InfoWorld, vol. 6, Issue 27, pp. 5, 11 and 12.
"Cellular link is Step to Portable Office", Electronic, Jun. 28, 1984, pp. 48 and 50.
Vodafone News, Feb. 13, 1985, two pages.
Bridge Modem Trademark Registration No. 1,366,435, Registered 10/22/85.
Dwyer James L.
Matar Ahmad F.
Spectrum Information Technologies, Inc.
LandOfFree
Cellular telephone data communication system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cellular telephone data communication system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cellular telephone data communication system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1239170