PHS handset having a speaker shared by a ring circuit and a...

Details PHS handset having a speaker shared by a ring circuit and a... PHS handset having a speaker shared by a ring circuit and a...

2006-05-23

2006-05-23

Corsaro, Nick (Department: 2686)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S567000, C455S333000

Reexamination Certificate

active

07050827

ABSTRACT:
The present invention relates to a PHS (Personal Handyphone System) handset having a speaker shared by a ring circuit and a receiver circuit comprising a voice-frequency amplification circuit to convert the communicating signals into low power signals applicable to telephoning and producing voices corresponding to the low power signals with a predetermined volume by a speaker, and to convert ring signals of the PHS handset into high power ring signals and producing voices corresponding to the high power signals by the same speaker with a predetermined volume.

REFERENCES:
patent: 5317622 (1994-05-01), Shinozaki
patent: 5517684 (1996-05-01), Fujita et al.

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