JPS60116256A - Receiver - Google Patents

Receiver

Info

Publication number
JPS60116256A
JPS60116256A JP58225285A JP22528583A JPS60116256A JP S60116256 A JPS60116256 A JP S60116256A JP 58225285 A JP58225285 A JP 58225285A JP 22528583 A JP22528583 A JP 22528583A JP S60116256 A JPS60116256 A JP S60116256A
Authority
JP
Japan
Prior art keywords
voltage
inputted
detector
carrier
pll
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
JP58225285A
Other languages
Japanese (ja)
Inventor
Kazuo Kimura
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP58225285A priority Critical patent/JPS60116256A/en
Publication of JPS60116256A publication Critical patent/JPS60116256A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/18Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22Demodulator circuits; Receiver circuits
    • H04L27/227Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2272Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals using phase locked loops

Abstract

PURPOSE:To decrease data error rate by changing a loop constant of a PLL at high speed fading in a mobile radio receiver. CONSTITUTION:A radio wave inputted from an antenna 1 is converted into an intermediate frequency and inputted to a data demodulator 7 and carrier detectors 4, 5. The signal is detected at the carrier detector 4 in following to the electric field strength by a high speed fading and changed into a DC voltage. The signal is converted into a DC voltage at the carrier detector 5 corresponding to the average level of the input electric field strength. An output voltage of both detectors 4, 5 are compared for the voltage only when the output voltage of the detector 5 is a set level or over, the output of the comparator 6 is inputted to the data demodulator 7 to vary the loop constant of the PLL.
JP58225285A 1983-11-28 1983-11-28 Receiver Pending JPS60116256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58225285A JPS60116256A (en) 1983-11-28 1983-11-28 Receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58225285A JPS60116256A (en) 1983-11-28 1983-11-28 Receiver

Publications (1)

Publication Number Publication Date
JPS60116256A true JPS60116256A (en) 1985-06-22

Family

ID=16826934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58225285A Pending JPS60116256A (en) 1983-11-28 1983-11-28 Receiver

Country Status (1)

Country Link
JP (1) JPS60116256A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372006A1 (en) * 1987-10-30 1990-06-13 FERNANDEZ, Emilio A Improved paging device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS513863A (en) * 1974-07-01 1976-01-13 Hitachi Electronics Am fukuchohoshiki

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS513863A (en) * 1974-07-01 1976-01-13 Hitachi Electronics Am fukuchohoshiki

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372006A1 (en) * 1987-10-30 1990-06-13 FERNANDEZ, Emilio A Improved paging device

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