JP2007189520A - パルス変調方法 - Google Patents
パルス変調方法 Download PDFInfo
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- JP2007189520A JP2007189520A JP2006006140A JP2006006140A JP2007189520A JP 2007189520 A JP2007189520 A JP 2007189520A JP 2006006140 A JP2006006140 A JP 2006006140A JP 2006006140 A JP2006006140 A JP 2006006140A JP 2007189520 A JP2007189520 A JP 2007189520A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 abstract description 53
- 230000000630 rising effect Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007257 malfunction Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4902—Pulse width modulation; Pulse position modulation
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M5/00—Conversion of the form of the representation of individual digits
- H03M5/02—Conversion to or from representation by pulses
- H03M5/04—Conversion to or from representation by pulses the pulses having two levels
- H03M5/06—Code representation, e.g. transition, for a given bit cell depending only on the information in that bit cell
- H03M5/08—Code representation by pulse width
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
- H04Q9/14—Calling by using pulses
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Dc Digital Transmission (AREA)
- Optical Communication System (AREA)
- Selective Calling Equipment (AREA)
Abstract
【解決手段】4N(Nは正の整数)ビットデータからなるコードを、2ビットデータで構成されるユニット毎に区切り、固定休止期間tmに、0、Δt、2Δt、3Δtのいずれかの時間幅を加えた4通りのパルス休止間隔Trを、ユニットの4値に対応させて設定し、ユニットの値でパルス位相変調したコード変調信号を生成する。コード変調信号には、少なくとも固定パルス幅twにほぼ等しい時間間隔の固定休止期間tmがあり、各パルス休止間隔Tr間には、固定パルス幅twの1/2以上で、固定パルス幅tw未満に設定された調整時間幅Δtの時間差があるので、パルスの立ち上がりや立ち下がり位置が変化しても、復調エラーが発生することなく、コード全体の送信期間TDが短縮される。
【選択図】図2
Description
tm 固定休止期間
Δt 調整時間幅
Tr パルス休止間隔
Tu ユニット毎の送信期間
TD コード変調信号の送信期間
Claims (2)
- 4N(Nは正の整数)ビットデータからなるコードを、2ビットデータで構成されるユニット毎に区切り、
各ユニット毎に、固定パルス幅twのパルス信号を発生させた後、そのユニットの2ビットデータの各値に対応させて設定したパルス休止間隔Trの間パルス信号を休止させたコード変調信号を生成し、
各ユニットのコード変調信号を連続させるパルス変調方法であって、
固定パルス幅twの1/2以上1未満の任意の調整時間幅をΔtとし、固定パルス幅twにほぼ等しい時間間隔の固定休止期間tmに、0、Δt、2Δt、3Δtのいずれかの時間幅を加えた4通りのパルス休止間隔Trを、2ビットデータの4通りの値に対応させて設定し、
4N(Nは正の整数)ビットデータから生成するコード変調信号の総和TDが、少なくとも[(2tw+2tm+3Δt)N+Δt]以上の間隔である場合に、
各ユニットのパルス休止間隔Trを、各ユニットの2ビットデータの値を反転させた2ビットデータに対応して設定されたパルス休止間隔Trへ置き換え、
置き換えたパルス休止間隔Trを用いて、全てのユニットからコード変調信号を生成し、
連続させたコード変調信号に反転情報を表す反転フラッグ信号を付加したことを特徴とするパルス変調方法。 - 固定休止期間tmと、固定休止期間tmにΔtを加えた時間の2通りのパルス休止間隔Trを、反転情報に対応させて設定し、固定パルス幅twのパルス信号を発生させた後、反転情報に対応させて設定したパルス休止間隔Trの間パルス信号を休止させて反転フラッグ信号を生成することを特徴とする請求項1記載のパルス変調方法。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006006140A JP3958339B2 (ja) | 2006-01-13 | 2006-01-13 | パルス変調方法 |
TW095126750A TW200727597A (en) | 2006-01-13 | 2006-07-21 | Pulse-modulating method |
US12/159,896 US7800518B2 (en) | 2006-01-13 | 2006-10-11 | Pulse modulation method |
CA002636893A CA2636893A1 (en) | 2006-01-13 | 2006-10-11 | Pulse modulation method |
KR1020087010668A KR100985188B1 (ko) | 2006-01-13 | 2006-10-11 | 펄스변조방법 |
PCT/JP2006/320262 WO2007080679A1 (ja) | 2006-01-13 | 2006-10-11 | パルス変調方法 |
CN2006800508281A CN101356786B (zh) | 2006-01-13 | 2006-10-11 | 脉冲调制方法 |
EP06811569A EP1983709A1 (en) | 2006-01-13 | 2006-10-11 | Pulse modulation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006006140A JP3958339B2 (ja) | 2006-01-13 | 2006-01-13 | パルス変調方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007189520A true JP2007189520A (ja) | 2007-07-26 |
JP3958339B2 JP3958339B2 (ja) | 2007-08-15 |
Family
ID=38256092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006006140A Expired - Fee Related JP3958339B2 (ja) | 2006-01-13 | 2006-01-13 | パルス変調方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7800518B2 (ja) |
EP (1) | EP1983709A1 (ja) |
JP (1) | JP3958339B2 (ja) |
KR (1) | KR100985188B1 (ja) |
CN (1) | CN101356786B (ja) |
CA (1) | CA2636893A1 (ja) |
TW (1) | TW200727597A (ja) |
WO (1) | WO2007080679A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010109974A (ja) * | 2008-09-30 | 2010-05-13 | Tdk Corp | デジタル信号伝送装置及びデジタル信号伝送方法 |
JP2011155793A (ja) * | 2010-01-28 | 2011-08-11 | Renesas Electronics Corp | 電力供給システム |
JP2014042105A (ja) * | 2012-08-21 | 2014-03-06 | Nec Commun Syst Ltd | 無線装置、それによって制御される制御対象機器、および無線装置と制御対象機器とを備える制御システム |
JP2016518787A (ja) * | 2014-03-28 | 2016-06-23 | 小米科技有限責任公司Xiaomi Inc. | 赤外線信号の送信方法、赤外線信号の送信装置、リモコン、プログラム、及び記録媒体 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USH2274H1 (en) | 2009-01-30 | 2013-05-07 | The United States Of America, As Represented By The Secretary Of The Navy | Variable pulse width encoding for information transmission |
JP2010245990A (ja) * | 2009-04-09 | 2010-10-28 | Seiko Epson Corp | 通信方法および通信システム |
CN101814233A (zh) * | 2010-04-08 | 2010-08-25 | 郑州炜盛电子科技有限公司 | 红外遥控软件解码方法 |
JP5627490B2 (ja) * | 2011-02-01 | 2014-11-19 | 三菱電機株式会社 | 空気調和機 |
CN104902600B (zh) * | 2014-03-06 | 2018-03-16 | 美的集团股份有限公司 | 电磁加热装置及其的控制方法 |
US20150279208A1 (en) * | 2014-03-28 | 2015-10-01 | Xiaomi Inc. | Method and remote controller for transmitting infrared signal |
CN105654014B (zh) * | 2015-12-30 | 2018-02-02 | 广州中大微电子有限公司 | 一种可兼容高低速信号解调的射频信号解调电路 |
CN106600948B (zh) * | 2016-12-30 | 2019-09-03 | 华为技术有限公司 | 一种红外遥控装置及终端 |
KR102054816B1 (ko) * | 2018-02-09 | 2020-01-22 | 한국과학기술원 | 신호를 처리하는 방법, 시스템 및 비일시성의 컴퓨터 판독 가능 기록 매체 |
US11477840B2 (en) | 2019-12-05 | 2022-10-18 | Kennesaw State University Research And Service Foundation, Inc. | Variable pulse encoding communications protocol |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5516575A (en) | 1978-07-21 | 1980-02-05 | Mitsubishi Electric Corp | Sending method for digital signal |
JPS5530213A (en) | 1978-08-25 | 1980-03-04 | Hitachi Ltd | Signal converter |
JPS6055794A (ja) | 1983-09-07 | 1985-04-01 | Matsushita Electric Ind Co Ltd | 表示装置 |
JPS60127852A (ja) | 1983-12-14 | 1985-07-08 | Matsushita Electric Works Ltd | リモコン受信機 |
JPS62100051A (ja) | 1985-10-25 | 1987-05-09 | Mitsubishi Electric Corp | デジタルリモ−トコントロ−ル法 |
JPS62200847A (ja) | 1986-02-28 | 1987-09-04 | Fujitsu Ltd | シリアル伝送方式 |
NL8802544A (nl) * | 1988-10-17 | 1990-05-16 | Philips Nv | Ontvanger voor toepassing in een afstandsbedieningssysteem. |
JPH03153084A (ja) | 1989-11-10 | 1991-07-01 | Seiko Epson Corp | 半導体装置 |
JP3153084B2 (ja) * | 1994-11-15 | 2001-04-03 | エスエムケイ株式会社 | パルス変調方法 |
JPH1013237A (ja) | 1996-06-24 | 1998-01-16 | Mitsumi Electric Co Ltd | ワイヤレス通信方法 |
EP1261123B1 (en) * | 2000-02-28 | 2007-10-17 | Kabushiki Kaisha Yaskawa Denki | Method for controlling pwm pulse |
US6882679B2 (en) * | 2000-12-29 | 2005-04-19 | Sharp Laboratories Of America, Inc. | Extension of wireless local area network communication system to accommodate higher data rates while preserving legacy receiver features |
-
2006
- 2006-01-13 JP JP2006006140A patent/JP3958339B2/ja not_active Expired - Fee Related
- 2006-07-21 TW TW095126750A patent/TW200727597A/zh not_active IP Right Cessation
- 2006-10-11 WO PCT/JP2006/320262 patent/WO2007080679A1/ja active Application Filing
- 2006-10-11 CA CA002636893A patent/CA2636893A1/en not_active Abandoned
- 2006-10-11 CN CN2006800508281A patent/CN101356786B/zh not_active Expired - Fee Related
- 2006-10-11 US US12/159,896 patent/US7800518B2/en not_active Expired - Fee Related
- 2006-10-11 KR KR1020087010668A patent/KR100985188B1/ko not_active IP Right Cessation
- 2006-10-11 EP EP06811569A patent/EP1983709A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010109974A (ja) * | 2008-09-30 | 2010-05-13 | Tdk Corp | デジタル信号伝送装置及びデジタル信号伝送方法 |
JP2011155793A (ja) * | 2010-01-28 | 2011-08-11 | Renesas Electronics Corp | 電力供給システム |
US8723367B2 (en) | 2010-01-28 | 2014-05-13 | Renesas Electronics Corporation | Power supply system |
JP2014042105A (ja) * | 2012-08-21 | 2014-03-06 | Nec Commun Syst Ltd | 無線装置、それによって制御される制御対象機器、および無線装置と制御対象機器とを備える制御システム |
JP2016518787A (ja) * | 2014-03-28 | 2016-06-23 | 小米科技有限責任公司Xiaomi Inc. | 赤外線信号の送信方法、赤外線信号の送信装置、リモコン、プログラム、及び記録媒体 |
Also Published As
Publication number | Publication date |
---|---|
WO2007080679A1 (ja) | 2007-07-19 |
TW200727597A (en) | 2007-07-16 |
CN101356786A (zh) | 2009-01-28 |
EP1983709A1 (en) | 2008-10-22 |
KR20080084799A (ko) | 2008-09-19 |
US7800518B2 (en) | 2010-09-21 |
CN101356786B (zh) | 2011-08-17 |
JP3958339B2 (ja) | 2007-08-15 |
KR100985188B1 (ko) | 2010-10-05 |
CA2636893A1 (en) | 2007-07-19 |
US20090134948A1 (en) | 2009-05-28 |
TWI338459B (ja) | 2011-03-01 |
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