JPS647730A - Digital tuner - Google Patents

Digital tuner

Info

Publication number
JPS647730A
JPS647730A JP16260287A JP16260287A JPS647730A JP S647730 A JPS647730 A JP S647730A JP 16260287 A JP16260287 A JP 16260287A JP 16260287 A JP16260287 A JP 16260287A JP S647730 A JPS647730 A JP S647730A
Authority
JP
Japan
Prior art keywords
circuit
signal
frequency
digitally
relation
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
JP16260287A
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 JP16260287A priority Critical patent/JPS647730A/en
Publication of JPS647730A publication Critical patent/JPS647730A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To digitally demodulate an FM signal with a simple constitution by having a prescribed relation between an intermediate frequency and a sampling frequency at the time of an A/D conversion. CONSTITUTION:In an A/D converting circuit 8, the IF signal of a frequency fc from an analog circuit part 1 is converted with a sampling frequency fs, and next, in an FM detecting circuit 9, digitally FM-detected. The detecting circuit 9 is provided with a Hilbert transform circuit, and ATAN circuit and a differential circuit. The detected digital composite signal is demodulated in a multiplexing circuit 18. Frequencies Fs and fc have a relation to satisfy fc (1/4+m/2)fs.
JP16260287A 1987-06-30 1987-06-30 Digital tuner Pending JPS647730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16260287A JPS647730A (en) 1987-06-30 1987-06-30 Digital tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16260287A JPS647730A (en) 1987-06-30 1987-06-30 Digital tuner

Publications (1)

Publication Number Publication Date
JPS647730A true JPS647730A (en) 1989-01-11

Family

ID=15757708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16260287A Pending JPS647730A (en) 1987-06-30 1987-06-30 Digital tuner

Country Status (1)

Country Link
JP (1) JPS647730A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392814U (en) * 1990-01-08 1991-09-20
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0392814U (en) * 1990-01-08 1991-09-20
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

Similar Documents

Publication Publication Date Title
EP0377509A3 (en) Efficient digital frequency division multiplexed signal receiver
TW341013B (en) Wide band zero if quadrature demodulator using an intermediate frequency and a single local oscillator
EP1139589A3 (en) Dual band Digital Audio Broadcast (DAB) receiver
NO905225L (en) HOMODYN RECEIVER FOR CABLE VIEW CONVERSION.
NZ209885A (en) Digital demodulation of quadrature signals in direct conversion receiver
UA37174C2 (en) System of digital transfer and transmitter and receiver used in the system
MY103057A (en) Digital radio frequency receiver
ES8407633A1 (en) Digital television receiver with analog-to-digital converter having time multiplexed gain
EP0410663A3 (en) Am noise reducing
TW353831B (en) A receiver for digital broadcasting system
CA2096476A1 (en) Receiver circuit for digital and analog modulated signal
EP0144245A3 (en) Transmitter/receiver system
JPS647730A (en) Digital tuner
JPS6439122A (en) Digital data demodulating circuit
DE3266917D1 (en) Digital demodulation circuit for a frequency-modulated signal, application of this circuit to the realisation of a demodulator stage for the chrominance signal of a television receiver, and television receiver comprising such a stage
JPS647735A (en) Digital tuner
JPS647731A (en) Digital tuner
JPS647729A (en) Digital tuner
GB9121504D0 (en) Signal sampling
GB2015282A (en) FM receiver
EP0166563A3 (en) Residue number system universal digital filter
EP0949772A3 (en) Radio Data System (RDS) demodulator for receiving broadcast programmes carrying both Radio Data signals and ARI signals, comprising a digital filter means for obtaining a high attenuation of ARI signals
JPS6453658A (en) Direct converting fsk receiver
JPS5768977A (en) Audio receiving circuit for television
GB2126393B (en) Speech-controlled apparatus