DE68924641D1 - Demodulatorschaltung für audiosignale. - Google Patents

Demodulatorschaltung für audiosignale.

Info

Publication number
DE68924641D1
DE68924641D1 DE68924641T DE68924641T DE68924641D1 DE 68924641 D1 DE68924641 D1 DE 68924641D1 DE 68924641 T DE68924641 T DE 68924641T DE 68924641 T DE68924641 T DE 68924641T DE 68924641 D1 DE68924641 D1 DE 68924641D1
Authority
DE
Germany
Prior art keywords
audio signals
demodulator circuit
demodulator
circuit
audio
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.)
Expired - Fee Related
Application number
DE68924641T
Other languages
English (en)
Other versions
DE68924641T2 (de
Inventor
Toshihiro Miyoshi
Naoji Okumura
Hisashi Arita
Kenji Ishikawa
Yuichi Ninomiya
Yoshimichi Otsuka
Tadashi Kawashima
Takushi Iwamoto
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.)
Panasonic Electric Works Co Ltd
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
Matsushita Electric Works 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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp, Matsushita Electric Works Ltd filed Critical Nippon Hoso Kyokai NHK
Publication of DE68924641D1 publication Critical patent/DE68924641D1/de
Application granted granted Critical
Publication of DE68924641T2 publication Critical patent/DE68924641T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H04N5/505—Invisible or silent tuning

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Noise Elimination (AREA)
  • Television Receiver Circuits (AREA)
DE68924641T 1988-10-24 1989-10-24 Demodulatorschaltung für audiosignale. Expired - Fee Related DE68924641T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63267452A JPH06103859B2 (ja) 1988-10-24 1988-10-24 音声信号復調回路
PCT/JP1989/001089 WO1990004891A1 (en) 1988-10-24 1989-10-24 Voice signal demodulation circuit

Publications (2)

Publication Number Publication Date
DE68924641D1 true DE68924641D1 (de) 1995-11-30
DE68924641T2 DE68924641T2 (de) 1996-04-18

Family

ID=17445044

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68924641T Expired - Fee Related DE68924641T2 (de) 1988-10-24 1989-10-24 Demodulatorschaltung für audiosignale.

Country Status (5)

Country Link
EP (1) EP0394493B1 (de)
JP (1) JPH06103859B2 (de)
KR (1) KR930004313B1 (de)
DE (1) DE68924641T2 (de)
WO (1) WO1990004891A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0817485B2 (ja) * 1991-01-29 1996-02-21 三洋電機株式会社 Ｍｕｓｅ音声デコーダ
JPH05191784A (ja) * 1992-01-13 1993-07-30 Pioneer Electron Corp Ｍｕｓｅ音声デコーダおよびｍｕｓｅ伝送システム
DE4236088A1 (de) * 1992-10-26 1994-04-28 Siemens Ag Verfahren zur Verringerung störender Auswirkungen schlechter Sprachübertragungsqualität bei einer Fernsprechverbindung mit einem schnurlosen Fernsprechgerät
US5467139A (en) * 1993-09-30 1995-11-14 Thomson Consumer Electronics, Inc. Muting apparatus for a compressed audio/video signal receiver
JP2011244291A (ja) 2010-05-20 2011-12-01 Sharp Corp テレビ放送受信機
CN108449057A (zh) * 2013-09-12 2018-08-24 意法半导体研发(深圳)有限公司 音频设备中去除pop噪声的方法与电路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567591A (en) * 1983-08-01 1986-01-28 Gray James S Digital audio satellite transmission system
JPS60101843U (ja) * 1983-12-14 1985-07-11 株式会社ケンウッド Ｐｃｍ放送受信機
JPS61276434A (ja) * 1985-05-31 1986-12-06 Nec Corp Ｐｃｍ信号送受信システム
NL8602418A (nl) * 1986-09-25 1988-04-18 Philips Nv Inrichting voor het weergeven van een pcm-gemoduleerd signaal, voorzien van een muteschakeling.
JP3213821B2 (ja) * 1992-07-09 2001-10-02 東亞合成株式会社 ハイドロタルサイト水性乳化液の製造方法
JP3189431B2 (ja) * 1992-10-28 2001-07-16 住友金属鉱山株式会社 極細線巻き取り方法

Also Published As

Publication number Publication date
EP0394493A4 (en) 1993-01-20
EP0394493B1 (de) 1995-10-25
KR930004313B1 (ko) 1993-05-22
WO1990004891A1 (en) 1990-05-03
KR900702678A (ko) 1990-12-08
JPH02153638A (ja) 1990-06-13
EP0394493A1 (de) 1990-10-31
DE68924641T2 (de) 1996-04-18
JPH06103859B2 (ja) 1994-12-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee