JPS647729A - Digital tuner - Google Patents

Digital tuner

Info

Publication number
JPS647729A
JPS647729A JP16260187A JP16260187A JPS647729A JP S647729 A JPS647729 A JP S647729A JP 16260187 A JP16260187 A JP 16260187A JP 16260187 A JP16260187 A JP 16260187A JP S647729 A JPS647729 A JP S647729A
Authority
JP
Japan
Prior art keywords
frequency
signal
composite signal
circuit
natural number
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
JP16260187A
Other languages
Japanese (ja)
Inventor
Shujiro Azuma
Kaoru Yamamoto
Jun Kanda
Hiroshi Sato
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP16260187A priority Critical patent/JPS647729A/en
Publication of JPS647729A publication Critical patent/JPS647729A/en
Pending legal-status Critical Current

Links

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PURPOSE:To digitally demodulate a composite signal with a simple constitution by setting the sampling frequency of an IF so as to satisfy prescribed conditions of the frequency of a pilot signal. CONSTITUTION:A prescribed IF signal from an analog circuit part 1 is converted by a sampling frequency fs in an A/D converting circuit 8 and next, in an FM detecting circuit 9, FM-detected digitally. The obtained digital composite signal is demodulated with the sub-carrier of an approximate sine wave in a multiplexing circuit 18. At such time, the frequency fs is set so as to satisfy fs=2<n>Nfp with the frequency of the pilot signal included in the composite signal as fp, with a value (n) as the natural number of 4 or above and with N as a natural number.
JP16260187A 1987-06-30 1987-06-30 Digital tuner Pending JPS647729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16260187A JPS647729A (en) 1987-06-30 1987-06-30 Digital tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16260187A JPS647729A (en) 1987-06-30 1987-06-30 Digital tuner

Publications (1)

Publication Number Publication Date
JPS647729A true JPS647729A (en) 1989-01-11

Family

ID=15757690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16260187A Pending JPS647729A (en) 1987-06-30 1987-06-30 Digital tuner

Country Status (1)

Country Link
JP (1) JPS647729A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009065234A (en) * 2007-09-04 2009-03-26 Pioneer Electronic Corp Signal processor, signal processing method, signal processing program, and recording medium thereof
JP2009118216A (en) * 2007-11-07 2009-05-28 Pioneer Electronic Corp Signal processing apparatus, method for signal processing, signal processing program, and its record medium
JP2009225259A (en) * 2008-03-18 2009-10-01 Pioneer Electronic Corp Fm receiver, its method and its program and recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752238A (en) * 1980-09-13 1982-03-27 Mitsubishi Electric Corp Radio receiving circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752238A (en) * 1980-09-13 1982-03-27 Mitsubishi Electric Corp Radio receiving circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009065234A (en) * 2007-09-04 2009-03-26 Pioneer Electronic Corp Signal processor, signal processing method, signal processing program, and recording medium thereof
JP2009118216A (en) * 2007-11-07 2009-05-28 Pioneer Electronic Corp Signal processing apparatus, method for signal processing, signal processing program, and its record medium
JP2009225259A (en) * 2008-03-18 2009-10-01 Pioneer Electronic Corp Fm receiver, its method and its program and recording medium

Similar Documents

Publication Publication Date Title
HK41291A (en) Digital television receiver with analog-to-digital converter having time multiplexed gain
KR900012444A (en) Effective Digital Frequency Division Multiplexed Signal Receiver
HK2795A (en) A subranging analog-to-digital converter
NO905225D0 (en) HOMODYN RECEIVER FOR CABLE VIEW CONVERSION.
JPS563421A (en) Signal converting device
NZ214281A (en) Digital demodulation of high frequency modulated signals
MY103057A (en) Digital radio frequency receiver
AU3220389A (en) Modem with improved digital signal processor
JPS647729A (en) Digital tuner
FI870294A0 (en) AVSTAEMNINGSSYSTEM FOER EN TELEVISION MED AUTOMATISK FINAVSTAEMNING.
IL84594A (en) Synchronous demodulator with digital signal output
JPS647730A (en) Digital tuner
JPS647731A (en) Digital tuner
JPS647735A (en) Digital tuner
JPS6439122A (en) Digital data demodulating circuit
JPS57176856A (en) Transmitting system of time division digital signal
GB2198909B (en) Digital signal amplitude limiter
DE58909726D1 (en) Circuit arrangement for demodulating an auxiliary carrier
JPS647732A (en) Digital tuner
JPS5563152A (en) Digital signal processor with control function for fsk demodulator circuit
JPS647706A (en) Fm detecting device
JPS57129527A (en) Frequency-to-digital converting system
JPS54129812A (en) Line monitor system
JPS5686511A (en) Fm demodulator
JPS5391557A (en) Demodulator circuit for fm modulated signal