JPS647735A - Digital tuner - Google Patents

Digital tuner

Info

Publication number
JPS647735A
JPS647735A JP16261387A JP16261387A JPS647735A JP S647735 A JPS647735 A JP S647735A JP 16261387 A JP16261387 A JP 16261387A JP 16261387 A JP16261387 A JP 16261387A JP S647735 A JPS647735 A JP S647735A
Authority
JP
Japan
Prior art keywords
signal
circuit
frequency
intermediate frequency
bpf
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.)
Granted
Application number
JP16261387A
Other languages
Japanese (ja)
Other versions
JP2675553B2 (en
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 JP16261387A priority Critical patent/JP2675553B2/en
Publication of JPS647735A publication Critical patent/JPS647735A/en
Application granted granted Critical
Publication of JP2675553B2 publication Critical patent/JP2675553B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To digitally demodulate a composite signal with a simple constitution by setting an fs to the multiple of natural number of the fs of a digital input signal when an intermediate frequency signal is sampled by a prescribed sampling frequency (fs) and digitized. CONSTITUTION:A TV voice multiplexing signal and an FM stereoscopic signal are inputted through an RF amplifying circuit 2 and an FM amplifying circuit 3 to a mixer 5, multiplexed with the prescribed frequency signal from a local oscillating circuit 4, an intermediate frequency signal is separated by BPF 6 and outputted through an amplifer 7. The intermediate frequency signal of a frequency fc from the circuit 7 is sampled and digitized by the sampling frequency fs of the frequency of the multiple of natural number of the fc, detected by an FM detecting circuit 9 and a composite signal is outputted. The signal is digitally demodulated by a multiplexing circuit 18 composed of demodulating circuits 12 and 13, a matrix circuit 16, a controller 17 and a BPF 37 of the composite signal of the FM stereoscopic signal and the TV voice signal.
JP16261387A 1987-06-30 1987-06-30 Digital tuner Expired - Lifetime JP2675553B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16261387A JP2675553B2 (en) 1987-06-30 1987-06-30 Digital tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16261387A JP2675553B2 (en) 1987-06-30 1987-06-30 Digital tuner

Publications (2)

Publication Number Publication Date
JPS647735A true JPS647735A (en) 1989-01-11
JP2675553B2 JP2675553B2 (en) 1997-11-12

Family

ID=15757927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16261387A Expired - Lifetime JP2675553B2 (en) 1987-06-30 1987-06-30 Digital tuner

Country Status (1)

Country Link
JP (1) JP2675553B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1148632A2 (en) * 2000-03-31 2001-10-24 Pioneer Corporation FM stereo signal demodulating apparatus
US6901146B1 (en) 1999-12-21 2005-05-31 Mitsubishi Denki Kabushiki Kaisha All-digital FM stereo demodulator and demodulation method
JP2009054418A (en) * 2007-08-27 2009-03-12 Tokai Rika Co Ltd Switch device
JP2009065234A (en) * 2007-09-04 2009-03-26 Pioneer Electronic Corp Signal processor, signal processing method, signal processing program, and recording medium thereof
JP2009225259A (en) * 2008-03-18 2009-10-01 Pioneer Electronic Corp Fm receiver, its method and its program and recording medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6901146B1 (en) 1999-12-21 2005-05-31 Mitsubishi Denki Kabushiki Kaisha All-digital FM stereo demodulator and demodulation method
EP1148632A2 (en) * 2000-03-31 2001-10-24 Pioneer Corporation FM stereo signal demodulating apparatus
JP2009054418A (en) * 2007-08-27 2009-03-12 Tokai Rika Co Ltd Switch device
JP2009065234A (en) * 2007-09-04 2009-03-26 Pioneer Electronic Corp Signal processor, signal processing method, signal processing program, and recording medium thereof
JP2009225259A (en) * 2008-03-18 2009-10-01 Pioneer Electronic Corp Fm receiver, its method and its program and recording medium

Also Published As

Publication number Publication date
JP2675553B2 (en) 1997-11-12

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