Contention interference detection in data communication receiver

Details Contention interference detection in data communication receiver Contention interference detection in data communication receiver

1979-06-07

1981-06-02

Atkinson, Charles E.

Excavating

340147LP, 340147SC, 371 56, 375101, H04Q 900

Patent

active

042715237

ABSTRACT:
When a plurality of transmitters share a common communication medium or radio frequency channel, collision interference will result when two or more transmissions overlap in time. An interference detector apparatus is used to sense this simultaneous transmission. The use of code redundancy in transmitting data over the medium in conjunction with a code classifying decoder apparatus permits interference to be detected within the receiver. The interference detector signal interrupts its own transmitter or a plurality of transmitters, when collision interference is present on the medium. This truncation of transmission improves the channel capacity of the shared medium. The interference signal can also be used to inhibit a receiver from generating erroneous data during the interference duration.

REFERENCES:
patent: 3343125 (1967-09-01), Lender
patent: 3622986 (1971-11-01), Tang et al.
patent: 3721959 (1973-03-01), George
patent: 3747065 (1973-07-01), Gibson
patent: 3760277 (1973-09-01), Whang
patent: 3831145 (1974-08-01), Mecklenburg et al.
patent: 4063220 (1977-12-01), Metcalfe et al.

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