JPS5579541A - Mobile radio equipment - Google Patents

Mobile radio equipment

Info

Publication number
JPS5579541A
JPS5579541A JP15267978A JP15267978A JPS5579541A JP S5579541 A JPS5579541 A JP S5579541A JP 15267978 A JP15267978 A JP 15267978A JP 15267978 A JP15267978 A JP 15267978A JP S5579541 A JPS5579541 A JP S5579541A
Authority
JP
Japan
Prior art keywords
signal
converted
converter
digital
processed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15267978A
Other languages
Japanese (ja)
Inventor
Noboru Kan
Seizo Seki
Tsunao Kanebori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP15267978A priority Critical patent/JPS5579541A/en
Publication of JPS5579541A publication Critical patent/JPS5579541A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To simplify and miniaturize the constitution of a unit by composing a circuit, with functions such as the channel selection, modulation, demodulation, and filtering of a mobile radio unit, of a digital circuit and then by using general IC for a microprocessor, memory, etc. CONSTITUTION:A signal received by antenna 1 is converted into an IF signal by receiving frequency converter 5 by using the output of local oscillator 4. This IF signal is converted by A/D converter 28 into a digital signal, which is supplied to digital signal processing circuit 29, where a sound signal, tone signal and control signal to be applied to control part 15 are processed. Further, the processed sound signal is converted by D/A converter 30 into an analog signal, which is suplied to telephone set 16. Then, the signal of telephone set 16 is converted by A/D converter 31 into a digital signal, which is supplied to control part 15, and the converted sound signal, tone signal, and control signal are processed by digital signal processing circuit 32 and then converted by D/A converter 33 into analog signals, which are modulated by transmission frequency converter 24 to send transmitted signals out.
JP15267978A 1978-12-12 1978-12-12 Mobile radio equipment Pending JPS5579541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15267978A JPS5579541A (en) 1978-12-12 1978-12-12 Mobile radio equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15267978A JPS5579541A (en) 1978-12-12 1978-12-12 Mobile radio equipment

Publications (1)

Publication Number Publication Date
JPS5579541A true JPS5579541A (en) 1980-06-16

Family

ID=15545734

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15267978A Pending JPS5579541A (en) 1978-12-12 1978-12-12 Mobile radio equipment

Country Status (1)

Country Link
JP (1) JPS5579541A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6990160B1 (en) 1999-09-17 2006-01-24 Matsushita Electric Industrial Co., Ltd. Reception apparatus and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELECTRONICS=1972 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6990160B1 (en) 1999-09-17 2006-01-24 Matsushita Electric Industrial Co., Ltd. Reception apparatus and method

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