Title:
RECEIVING DEVICE
Document Type and Number:
Japanese Patent JP3545606
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a receiving device which is decreased in the number of the components of a radio circuit part, places no excessive load on an analog circuit, and is flexibly complied to a plurality of radio communication systems that is different in frequency and band by making good use of digital signal processing.
SOLUTION: Modulated signals of plural channels are received by an antenna 10 and inputted to an orthogonal demodulator 11 to generate orthogonal base band signals, which are inputted to an orthogonal modulator 16 through low-pass filters 15a and 15b having an interference wave removing function and an anti- aliasing function for a training A/D converter to generate an orthogonal intermediate-frequency signal; and this signal is converted by the A/D converter 21 into a digital signal and a digital signal processing part 22 performs channel selection and data regeneration.
Inventors:
Hiroshi Tsurumi
Hiroshi Yoshida
Hiroshi Yoshida
Application Number:
JP19171898A
Publication Date:
July 21, 2004
Filing Date:
July 07, 1998
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04L27/14; H03D7/16; H04B1/28; H04B1/30; H04J1/00; (IPC1-7): H04L27/14; H04J1/00
Domestic Patent References:
| JP9200286A | ||||
| JP59196629A | ||||
| JP7235847A | ||||
| JP8510892A | ||||
| JP10303767A | ||||
| JP1117748A | ||||
| JP1022859A |
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Atsushi Tsuboi
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Shoji Kawai
Sadao Muramatsu
Atsushi Tsuboi
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Shoji Kawai