Digital radio telephone

Details Digital radio telephone Digital radio telephone

1993-08-13

1996-03-12

Coles, Sr., Edward L.

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

H04M 100

Patent

active

054992869

ABSTRACT:
A digital radio telephone gives information to user in speech form by using an advanced speech coder/decoder in a digital radio communication network. Such an advanced coder/decoder can reduce quantity of coded data to be stored. The digital radio telephone according to a first embodiment includes a speech coder/decoder, a speech information memory, a speech information retrieval table, an operational information controller, and a speech information reading section. A plurality of predetermined speech signals are stored in the speech information memory in coded form. The speech information retrieval table stores information for producing a voice message to the user using the items in the speech information memory. To give the voice message to the user, the information is read out by the operational information controller and necessary items of speech signals are read out by the speech information reading section in sequence according to the read information. The speech voice coder/decoder decodes the items so as to produce the voice message in the same way as with digital speech voice signals received by the digital radio telephone. According to a second embodiment, the user can store his own voice into the speech information memory in coded form, and when the user operates the telephone, the user will hear the voice messages in his own voice.

REFERENCES:
patent: 5054053 (1991-10-01), Sakanishi et al.
patent: 5371779 (1994-12-01), Kobayashi

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