JPH11506895A - Fsk受信器における周波数制御信号の生成 - Google Patents
Fsk受信器における周波数制御信号の生成Info
- Publication number
- JPH11506895A JPH11506895A JP9530759A JP53075997A JPH11506895A JP H11506895 A JPH11506895 A JP H11506895A JP 9530759 A JP9530759 A JP 9530759A JP 53075997 A JP53075997 A JP 53075997A JP H11506895 A JPH11506895 A JP H11506895A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- stage
- frequency
- circuit arrangement
- value
- 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
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
- H04L27/16—Frequency regulation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 少なくとも2個の所定の入力周波数を有するFSK変調入力信号を制御可 能な発振器により供給された発振と混合し、中間周波信号を形成すると共に、瞬 時値が上記中間周波信号の周波数(中間周波)から生じるデータ信号、並びに、 周波数及び/又は位相が上記中間周波信号の周波数及び/又は位相の測定量であ る復調パルス信号を上記中間周波信号から得るため配置され、 上記復調パルス信号から制御信号を得る制御信号発生分岐回路と、 データ信号が値を変える時間間隔中にデータ信号から割込信号を得る割込信号 発生分岐回路と、 上記割込信号の発生に応じて上記復調パルス信号からの上記制御信号に対する 値の取り出しを抑止する割込段とからなる、受信装置の制御可能な発振器用の制 御信号を発生する回路配置。 2. 上記制御信号は上記復調パルス信号から不連続的に取得された制御信号値 のシーケンスの時間平均により形成され、 制御信号値は、平均化演算から除外された、データ信号の値が変化する遷移期 間から生じることを特徴とする請求項1記載の回路配置。 3. 上記復調パルス信号は反復周波数が中間周波の整数倍であるパルスのシー ケンスを含み、 上記制御信号値は連続的なパルス間の時間的距離の測定により形成されること を特徴とする請求項2記載の回路配置。 4. 上記復調パルス信号の2個ずつの連続的なパルス間の各時間間隔毎に一定 レベルを有する信号の積分により上記制御信号値を一つずつ形成する積分段を更 に有することを特徴とする請求項3記載 の回路配置。 5. 上記割込信号発生分岐は、 上記データ信号の値の変化を検出する信号変化検出段と、 上記信号変化検出段に接続され、上記データ信号が値を変える時間間隔をカバ ーするパルス状割込信号を形成するパルス形成段とからなることを特徴とする請 求項1乃至4のうちいずれか1項記載の回路配置。 6. 上記信号変化検出段は、差分段と、後続の整流段とを含むことを特徴とす る請求項5記載の回路配置。 7. 請求項1乃至6のうちいずれか1項記載の回路配置を含むことを特徴とす る無線受信器(ページャー)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19608068 | 1996-03-02 | ||
DE19608068.1 | 1996-03-02 | ||
PCT/IB1997/000181 WO1997032422A1 (de) | 1996-03-02 | 1997-02-27 | Erzeugung eines frequenzsteuersignals in einem fsk-empfänger |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11506895A true JPH11506895A (ja) | 1999-06-15 |
JP3833259B2 JP3833259B2 (ja) | 2006-10-11 |
Family
ID=7787031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53075997A Expired - Fee Related JP3833259B2 (ja) | 1996-03-02 | 1997-02-27 | Fsk受信器における周波数制御信号の生成 |
Country Status (7)
Country | Link |
---|---|
US (1) | US6081560A (ja) |
EP (1) | EP0824818B1 (ja) |
JP (1) | JP3833259B2 (ja) |
KR (1) | KR100460357B1 (ja) |
CN (1) | CN1130886C (ja) |
DE (1) | DE59712313D1 (ja) |
WO (1) | WO1997032422A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006261992A (ja) * | 2005-03-16 | 2006-09-28 | Fujitsu Ltd | 受信装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6968019B2 (en) | 2000-11-27 | 2005-11-22 | Broadcom Corporation | IF FSK receiver |
US20020196865A1 (en) * | 2001-06-25 | 2002-12-26 | The National University Of Singapore | Cycle-by-cycle synchronous waveform shaping circuits based on time-domain superpostion and convolution |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH584490A5 (ja) * | 1975-04-16 | 1977-01-31 | Patelhold Patentverwertung | |
GB2032737A (en) * | 1978-10-24 | 1980-05-08 | Standard Telephones Cables Ltd | Radio receiver for tone modulated signals |
GB2137836B (en) * | 1983-04-06 | 1986-07-23 | Multitone Electronics Plc | Fm demodulators |
DE3324311A1 (de) * | 1983-07-06 | 1985-01-17 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Decoder fuer ein frequenzgetastetes signal, insbesondere ein fsk-bildschirmtext-signal |
US4550292A (en) * | 1983-09-06 | 1985-10-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Automatic oscillator frequency control system |
NL8303819A (nl) * | 1983-11-07 | 1985-06-03 | Philips Nv | Gesampelde costas lus. |
GB2158330A (en) * | 1984-04-30 | 1985-11-06 | Philips Electronic Associated | An afc system for a direct modulation fm data receiver |
GB2233535A (en) * | 1989-06-30 | 1991-01-09 | Philips Electronic Associated | Radio receiver |
GB9027276D0 (en) * | 1990-12-17 | 1991-02-06 | Philips Nv | Coherent optical multichannel receiver |
JPH05130071A (ja) * | 1991-11-05 | 1993-05-25 | Matsushita Electric Ind Co Ltd | 雑音除去装置 |
JP2982567B2 (ja) * | 1993-07-20 | 1999-11-22 | 松下電器産業株式会社 | 受信装置 |
US5790607A (en) * | 1995-11-28 | 1998-08-04 | Motorola Inc. | Apparatus and method for recovery of symbol timing for asynchronous data transmission |
JP2919335B2 (ja) * | 1996-02-06 | 1999-07-12 | 埼玉日本電気株式会社 | Afc型発振回路 |
-
1997
- 1997-02-27 DE DE59712313T patent/DE59712313D1/de not_active Expired - Lifetime
- 1997-02-27 WO PCT/IB1997/000181 patent/WO1997032422A1/de active IP Right Grant
- 1997-02-27 CN CN97190380A patent/CN1130886C/zh not_active Expired - Fee Related
- 1997-02-27 US US08/945,624 patent/US6081560A/en not_active Expired - Lifetime
- 1997-02-27 JP JP53075997A patent/JP3833259B2/ja not_active Expired - Fee Related
- 1997-02-27 EP EP97904537A patent/EP0824818B1/de not_active Expired - Lifetime
- 1997-02-27 KR KR1019970707879A patent/KR100460357B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006261992A (ja) * | 2005-03-16 | 2006-09-28 | Fujitsu Ltd | 受信装置 |
JP4546295B2 (ja) * | 2005-03-16 | 2010-09-15 | 富士通セミコンダクター株式会社 | 受信装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0824818B1 (de) | 2005-05-18 |
EP0824818A1 (de) | 1998-02-25 |
CN1130886C (zh) | 2003-12-10 |
DE59712313D1 (de) | 2005-06-23 |
KR19990008353A (ko) | 1999-01-25 |
US6081560A (en) | 2000-06-27 |
CN1189271A (zh) | 1998-07-29 |
KR100460357B1 (ko) | 2005-02-24 |
WO1997032422A1 (de) | 1997-09-04 |
JP3833259B2 (ja) | 2006-10-11 |
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