Portable device for use by a news reporter

Details Portable device for use by a news reporter Portable device for use by a news reporter

1989-10-18

1991-02-12

Ng, Jin F.

Telephonic communications

Having near field link

379 87, 379392, 379395, 379403, 379443, H04M 900, H04M 164, H04M 100

Patent

active

049930605

ABSTRACT:
A portable device to be carried by a reporter and coupled to a telephone line to a location from which the reporter wishes to transmit a report to a broadcast station to be broadcast live has a casing with a microphone (1) for voice input, a tape input (2) for receiving a tape signal and a monitor (3) for providing acoustic signal to the reporter.
The device has signal conditioning circuitry including voice control gain adjustment (20) and amplification (5) for providing a signal to be transmitted by the telephone line in a form suitable for broadcasting. The device is coupled to the telephone line by a hybrid transformer arrangement (7 to 14) which serves to cancel unwanted components of the signal to be sent down a telephone line from that to be received from the telephone line. The device is portable and has its own power supply in the form of batteries or connections for an AC mains auto supply.

REFERENCES:
patent: 2868879 (1959-01-01), Berman et al.
patent: 2924670 (1960-02-01), Dee
patent: 3748397 (1973-07-01), Jones
patent: 3875350 (1985-04-01), Fischer
patent: 4446335 (1984-05-01), Lee et al.
patent: 4536618 (1985-08-01), Serrano
patent: 4590331 (1986-05-01), Nunemaker et al.
patent: 4605975 (1986-08-01), Beaman
A. J. Eisenberg, "Telephone Coupling Transformers", Engineering Application Bulletin, 1972.

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