JPS5761366A - Digital signal receiver - Google Patents

Digital signal receiver

Info

Publication number
JPS5761366A
JPS5761366A JP13629180A JP13629180A JPS5761366A JP S5761366 A JPS5761366 A JP S5761366A JP 13629180 A JP13629180 A JP 13629180A JP 13629180 A JP13629180 A JP 13629180A JP S5761366 A JPS5761366 A JP S5761366A
Authority
JP
Japan
Prior art keywords
receiver
multiplier
transmitter
transmission spectrum
modulation degree
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
JP13629180A
Other languages
Japanese (ja)
Inventor
Yoshihiko Akaiwa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13629180A priority Critical patent/JPS5761366A/en
Publication of JPS5761366A publication Critical patent/JPS5761366A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To synchronously detect the signal obtained by multiplying the receiving signal by N, by synchronously detecting and by supressing the extent of transmission spectrum. CONSTITUTION:The construction of a transmitter is the same as the conventional one. But, the modulation degree of an FM modulator is et to 1/N (N is a positive integral number) of the conventional one and between a band path filter 6 and a synchronizing detector 8 of the receiver, an N multiplier 12 is newly set. As modulation degree is previously set to 1/N on the transmitter, transmission spectrum becomes narrow and then, the required frequency band width becomes small. In addition, as the N multiplier is installed on the receiver, synchronizing detection can be performed as same as the conventional unit.
JP13629180A 1980-09-30 1980-09-30 Digital signal receiver Pending JPS5761366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13629180A JPS5761366A (en) 1980-09-30 1980-09-30 Digital signal receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13629180A JPS5761366A (en) 1980-09-30 1980-09-30 Digital signal receiver

Publications (1)

Publication Number Publication Date
JPS5761366A true JPS5761366A (en) 1982-04-13

Family

ID=15171732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13629180A Pending JPS5761366A (en) 1980-09-30 1980-09-30 Digital signal receiver

Country Status (1)

Country Link
JP (1) JPS5761366A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7527088B2 (en) 2001-07-10 2009-05-05 Denso Corporation Exhaust gas heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7527088B2 (en) 2001-07-10 2009-05-05 Denso Corporation Exhaust gas heat exchanger

Similar Documents

Publication Publication Date Title
JPS5761366A (en) Digital signal receiver
GB1536095A (en) Noise reduction circuit for fm demodulators
JPS53139512A (en) Information detector
JPS56102143A (en) Spectrum diffusion communication system
IE790599L (en) Monitoring of signal quality
JPS5438715A (en) Frequency shift detector circuit
JPS56129462A (en) Synchronizing method in demodulation for frequency pattern modulation wave
JPS5690648A (en) Auxiliary signal transmission system
GB1532103A (en) Method and apparatus for translating multiple frequency signalling
JPS5474617A (en) Receiver
JPS5438717A (en) Fm receiver
JPS5345911A (en) Timing signal extraction circuit
JPS5345913A (en) Timing signal extraction circuit
JPS5630336A (en) Multipath detecting method
JPS56169942A (en) Beat signal detector
JPS56106464A (en) Signal receiver
JPS54105403A (en) Tone signal detection circuit
JPS5713824A (en) Lincompex radio equipment
JPS5741018A (en) Dynamic tracking filter of injection synchronizing oscillator type
JPS5772451A (en) Frequency detection system
JPS55134586A (en) Sound multiplex program discriminator
JPS54138304A (en) Transmission unit of optical multiplex modulation
JPS57174953A (en) Frequency measuring method
JPS57186808A (en) Phase detecting circuit
JPS57129553A (en) Am stereo receiver