Pulse or digital communications – Repeaters – Testing
Patent
1989-05-22
1992-03-10
Safourek, Benedict V.
Pulse or digital communications
Repeaters
Testing
375121, 379 97, 371 55, 371 30, H04B 346
Patent
active
050954946
ABSTRACT:
A data transmission apparatus is capable of data transmissions with and/or without error control. A remote data transmission apparatus with error control recognizes whether or not the carrier sent from the data transmission apparatus is intermittent. Additionally, the data transmission apparatus recognizes, based upon the existence of interruptions of a carrier signal sent from a remote data transmission apparatus, whether or not the remote data transmission apparatus has an error control function.
REFERENCES:
patent: 3113176 (1963-12-01), Doktor et al.
patent: 3457550 (1969-07-01), Gibson et al.
patent: 4894847 (1990-01-01), Tjahjadi et al.
patent: 4905282 (1990-02-01), McGlynn et al.
patent: 4959847 (1990-09-01), Engelke et al.
Etoh Hiroshi
Takahashi Chusei
Manzo Edward D.
OKI Electric Industry Co., Ltd.
Safourek Benedict V.
Tse Young
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