Cordless subunit facsimile system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5805678
SERIAL NO

08138119

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A facsimile system with the body thereof usable as a subunit of a cordless telephone is disclosed. A parent unit is connected to the telephone line. A facsimile subunit is connected by radio to the parent unit. A telephone subunit is also connected by radio to the parent unit. A circuit included in the parent unit detects a signal indicating that the other party is in facsimile transmission mode. When a call signal is detected from the telephone line, the parent unit connects the line. When a CNG signal is detected, on the other hand, the parent unit connects the facsimile subunit by radio. In the case where a CNG signal is not detected, the parent unit starts the ring-up tone on the telephone subunit. An AGC circuit and a voice mute circuit are included in the parent unit.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTDTOKYO 100-8280

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imanishi, Shinya Fujisawa, JP 9 80
Okamoto, Teiji Fujisawa, JP 18 404
Shinagawa, Tetsuo Odawara, JP 10 105
Tanaka, Seiji Katsuta, JP 157 1416
Tanaka, Toru Fujisawa, JP 237 1692
Watanabe, Yumiko Tokyo, JP 12 87

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