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Patent Searching and Data


Title:
BASEBAND DEVICE
Document Type and Number:
Japanese Patent JPH09153880
Kind Code:
A
Abstract:

To simplify configuration by sharing a reception converter and a transmission D/A converter in a time division manner, which correspond to the respective analog and digital modes.

In receiving, an inputted orthogonal phase modulating signal 108 is demodulated in an orthogonal phase demodulator 2 and outputted analog data signals 109 and 110 are respectively converted into digital data signals 111 and 112 by the reception A/D converters 4 and 5 so as to be outputted, inputted to an interface circuit 8 and outputted from an RX terminal. In transmitting, transmission digital signals 113 and 114 which are inputted with the interface circuit 8 are respectively converted into the analog data signals 115 and 116 in the transmission D/A converters 6 and 7 so as to be inputted to an orthogonal phase modulator 3, outputted as the transmission orthogonal phase modulating signal 117 with an orthogonal phase modulating activation and transmission-outputted with a duplexer 1.


Inventors:
KANBARA SATOSHI
Application Number:
JP1995000311249
Publication Date:
June 10, 1997
Filing Date:
November 29, 1995
Export Citation:
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Assignee:
NIPPON ELECTRIC IC MICROCOMPUT
International Classes:
H04J11/00; H04J4/00; (IPC1-7): H04J11/00
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)