Title:
送受信装置
Document Type and Number:
Japanese Patent JP3890605
Kind Code:
B2
Abstract:
Inputted audio signals are compressed and encoded by a speech encoder (3), sent to an RF transmission processor (4), subjected to channel encoding, modulation and transmission processing, and transmitted through an antenna (11). Signals received by the antenna (11) are subjected to reception processing, demodulation and channel decoding by an RF reception processor (5), and expanded and decoded by a speech decoder (6). A recording/reproduction controller (8) controls the writing of the signals from the speech encoder (3) into a semiconductor memory (7) and the readout of the signals from the memory (7) to the speech decoder (6). Therefore, the memory (7) can be efficiently utilized for two-way/one-way communication without increasing the circuit constitution.
Inventors:
Yuji Maeda
Masayuki Nishiguchi
Kentaro Odaka
Masayuki Nishiguchi
Kentaro Odaka
Application Number:
JP50793196A
Publication Date:
March 07, 2007
Filing Date:
August 02, 1995
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04B14/04; B60L50/15; G10L19/00; H04B1/38; H04B1/66; H04M1/656; H04M11/10; H04W4/16; H04W88/02; H04M1/60; H04M1/724
Domestic Patent References:
| JP61274522A | ||||
| JP61275900A | ||||
| JP3248398A | ||||
| JP62159965A |
Attorney, Agent or Firm:
Akira Koike
Eiichi Tamura
Seiji Iga
Eiichi Tamura
Seiji Iga