Radio communication apparatus and method for multiplex transmission of voice and data signals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 3, 1996
Grant Date -
N/A
app pub date -
Mar 30, 1995
filing date -
Apr 4, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radio communication apparatus for transmitting a voice signal and a data signal in a multiplex form. The transmitting side of the radio communication apparatus includes: a sampling unit for sampling the voice signal and the data signal and generating a digital voice signal and a digital data signal; a time division unit for dividing the digital voice signal and the digital data signal on the basis of a predetermined period; a modulation unit for modulating the divided digital data signal by a predetermined digital modulation scheme; a unit for compressing the divided digital voice signal at a predetermined compression factor and generating a compressed voice signal; a unit for combining the divided and compressed voice signal and the divided and digitally modulated digital data signal and generating a multiplex signal; and a unit for modulating a carrier signal by the multiplex signal and transmitting the modulated carrier signal as a transmission signal.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 15 Citation Count
- H04J Class
- 45.28 % this patent is cited more than
- 29 Age