Telephonic communications – Telephone line or system combined with diverse electrical...
Patent
1991-10-30
1993-04-27
Dwyer, James L.
Telephonic communications
Telephone line or system combined with diverse electrical...
379100, 379442, H04M 1100
Patent
active
052068986
ABSTRACT:
A transmission control unit for controlling transmission and reception of data between electronic devices via a telephone without any use of acoustic coupling is disclosed. The transmission control unit is equipped with a first terminal for detachably connecting a main body of the telephone, a second terminal for detachably connecting a handset removable from the main body of the telephone, and a third terminal for detachably connecting the electronic device. When the main body, the handset and the electronic device are, respectively, connected to the first, second and third terminals, the transmission control unit permits analog electronic data from the electronic device to be input to the main body of the telephone at the handset interface level, and permits analog electronic data from the main body to be sent to the electonic device.
REFERENCES:
patent: 3647972 (1972-03-01), Grover et al.
patent: 3663757 (1972-05-01), Cassidy
patent: 4203006 (1980-05-01), Mascia
patent: 4288661 (1981-09-01), Krishan
patent: 4446335 (1984-05-01), Lee et al.
patent: 4599491 (1986-07-01), Serrano
patent: 4805210 (1989-02-01), Griffith, Jr.
patent: 4807278 (1989-02-01), Ross
patent: 4809317 (1989-02-01), Howe et al.
patent: 4815121 (1989-03-01), Yoshida
patent: 4825465 (1989-04-01), Ryan
patent: 4907267 (1990-03-01), Gutzmer
patent: 4987586 (1991-01-01), Gross et al.
patent: 5001746 (1991-03-01), Nishijima
Telephony, Dec. 1986, p. 62 "Cellular Option".
Sidewell Development Ltd. "A-JEM Box Universal Interface Device" Jan. 88.
TVMP Inc. advertisement "PhoneFlex" Dec. 88.
Dwyer James L.
Matar Ahmad F.
Shirohato Yakuhiin Co., Ltd.
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