Telephonic communications – Terminal accessory or auxiliary equipment – With circuit connection to terminal
Patent
1988-06-16
1990-03-06
Ng, Jin F.
Telephonic communications
Terminal accessory or auxiliary equipment
With circuit connection to terminal
379 93, 379100, H04M 170, H04M 1100, H04L 500
Patent
active
049072676
ABSTRACT:
An apparatus for connecting a telecommunications device, such as a computer or facsimile machine modem, to a telephone line via a telephone set. The telephone set includes a base and a handset connected to the base by a handset cord. The handset cord has at one end a handset plug and the base has a base jack for receiving the handset plug. The apparatus selectively electrically couples one of the handset and the telecommunications device to the base. The apparatus includes a first plug for electrically coupling with the base jack, a first jack for electrically coupling with the handset plug, and the second jack for electrically coupling with the telecommunications device connecting plug. A switch, manually selectable between a first position and a second position, electrically couples the first plug with the first jack when in the first position. A converter is coupled to the switch and the second jack such that when the switch second position is selected, the switch electrically interfacing the first plug with the second jack.
REFERENCES:
patent: 4160122 (1979-07-01), Jacobson
patent: 4367374 (1983-01-01), Serrano
patent: 4446335 (1984-05-01), Lee et al.
Precision Components, Inc.'s advertisement for Data Switch in Teleconnect Magazine, May, 1988.
TVMP, Inc.'s advertisement for Phoneflex in PC Week Magazine, Jun., 1988.
A-JEM's data sheet, Jan., 1988.
K. D. Witt., "Switchbox for Voice/Data Communication", IBM Technical Disclosure Bulletin, vol 14, No. 5, Oct. 1971, pp. 1606, 1607.
"WIO Receiver Amplifier", Walker Equipment Corp., Telephony, Sep. 8, 1986, p. 65.
Chan Wing F.
Ng Jin F.
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