JP6741946B2 - 偏移制御回路および無線機 - Google Patents
偏移制御回路および無線機 Download PDFInfo
- Publication number
- JP6741946B2 JP6741946B2 JP2016188512A JP2016188512A JP6741946B2 JP 6741946 B2 JP6741946 B2 JP 6741946B2 JP 2016188512 A JP2016188512 A JP 2016188512A JP 2016188512 A JP2016188512 A JP 2016188512A JP 6741946 B2 JP6741946 B2 JP 6741946B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- shift
- signal
- phase
- phase shifter
- 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.)
- Active
Links
- 230000001629 suppression Effects 0.000 claims description 24
- 230000010363 phase shift Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 15
- 238000005070 sampling Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/06—Means for changing frequency deviation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/18—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3063—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one transistor as controlling device, the transistor being used as a variable impedance device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/66—Circuits for processing colour signals for synchronous demodulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0425—Circuits with power amplifiers with linearisation using predistortion
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Transmitters (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Description
入力された制御対象信号の振幅を第1の閾値以下の値に制限する、振幅制限を行うリミッタ回路と、
前記リミッタ回路で前記振幅制限された前記制御対象信号に含まれる、定められた周波数範囲内の周波数成分について、位相を定められた量だけシフトする位相シフトを行うことで、前記制御対象信号に含まれる基本波と高調波の位相を異なる値とする移相器と、
前記移相器で前記位相シフトされた前記制御対象信号に含まれる、第2の閾値以上の周波数成分を抑圧する高調波抑圧部と、
を備える。
前記高調波抑圧部は、有限インパルス応答フィルタで構成されるスプラッタフィルタである。
いずれかの前記偏移制御回路と、
前記情報信号の信号レベルに応じて搬送波の周波数を変化させる周波数変調を行う変調部と、
前記変調部で前記周波数変調された前記搬送波から送信信号を生成し、アンテナから送信する送信部と、
を備える。
2 マイク
3 A−D変換器
4 プリエンファシス回路
5 偏移制御回路
6 変調部
7 送信部
8 アンテナ
9 調節部
11 リミッタ回路
12 移相器
13 高調波抑圧部
20 コントローラ
21 CPU
22 I/O
23 RAM
24 ROM
25 表示部
26 操作部
Claims (5)
- 周波数変調を行う無線機に設けられ、前記周波数変調に用いられる情報信号を出力する偏移制御回路であって、
入力された制御対象信号の振幅を第1の閾値以下の値に制限する、振幅制限を行うリミッタ回路と、
前記リミッタ回路で前記振幅制限された前記制御対象信号に含まれる、定められた周波数範囲内の周波数成分について、位相を定められた量だけシフトする位相シフトを行うことで、前記制御対象信号に含まれる基本波と高調波の位相を異なる値とする移相器と、
前記移相器で前記位相シフトされた前記制御対象信号に含まれる、第2の閾値以上の周波数成分を抑圧する高調波抑圧部と、
を備える偏移制御回路。 - 前記移相器は、無限インパルス応答フィルタで構成される全域通過フィルタであり、
前記高調波抑圧部は、有限インパルス応答フィルタで構成されるスプラッタフィルタである、
請求項1に記載の偏移制御回路。 - 前記移相器および前記高調波抑圧部は、1つの無限インパルス応答フィルタで構成されるスプラッタフィルタである請求項1に記載の偏移制御回路。
- 請求項1から3のいずれか1項に記載の偏移制御回路と、
前記情報信号の信号レベルに応じて搬送波の周波数を変化させる周波数変調を行う変調部と、
前記変調部で前記周波数変調された前記搬送波から送信信号を生成し、アンテナから送信する送信部と、
を備える無線機。 - 前記送信信号の占有周波数帯域幅に応じて、前記移相器における前記位相シフトの対象となる前記周波数範囲および前記位相シフトの前記定められた量、ならびに前記高調波抑圧部の前記第2の閾値の少なくともいずれかを調節する調節部をさらに備える請求項4に記載の無線機。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016188512A JP6741946B2 (ja) | 2016-09-27 | 2016-09-27 | 偏移制御回路および無線機 |
US15/692,673 US10256772B2 (en) | 2016-09-27 | 2017-08-31 | Shift control circuit and wireless device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016188512A JP6741946B2 (ja) | 2016-09-27 | 2016-09-27 | 偏移制御回路および無線機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018056714A JP2018056714A (ja) | 2018-04-05 |
JP6741946B2 true JP6741946B2 (ja) | 2020-08-19 |
Family
ID=61685715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016188512A Active JP6741946B2 (ja) | 2016-09-27 | 2016-09-27 | 偏移制御回路および無線機 |
Country Status (2)
Country | Link |
---|---|
US (1) | US10256772B2 (ja) |
JP (1) | JP6741946B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11372041B2 (en) * | 2020-12-02 | 2022-06-28 | Guzik Technical Enterprises | Phase frequency response measurement method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61265930A (ja) | 1985-05-21 | 1986-11-25 | Matsushita Electric Ind Co Ltd | 無線送受信装置 |
US6137353A (en) * | 1998-06-29 | 2000-10-24 | Philips Electronics North America Corporation | Linearized integrated FM demodulator using a plurality of cascaded all-pass filters or a bessel filter |
JP2006140582A (ja) * | 2004-11-10 | 2006-06-01 | Matsushita Electric Ind Co Ltd | 送信信号生成装置 |
US9917565B2 (en) * | 2015-10-20 | 2018-03-13 | Bose Corporation | System and method for distortion limiting |
US9933467B1 (en) * | 2016-09-16 | 2018-04-03 | Guzik Technical Enterprises | Group delay measurement apparatus and method |
-
2016
- 2016-09-27 JP JP2016188512A patent/JP6741946B2/ja active Active
-
2017
- 2017-08-31 US US15/692,673 patent/US10256772B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP2018056714A (ja) | 2018-04-05 |
US10256772B2 (en) | 2019-04-09 |
US20180091097A1 (en) | 2018-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8351619B2 (en) | Auditory sense correction device | |
JP6609698B2 (ja) | 歪みを制限するためのシステムおよび方法 | |
US20150030181A1 (en) | Frequency characteristic modification device | |
JP2018531557A6 (ja) | 歪みを制限するためのシステムおよび方法 | |
JP4311043B2 (ja) | 電動機の制御装置 | |
JP6741946B2 (ja) | 偏移制御回路および無線機 | |
US9564979B2 (en) | Mismatch compensating device and method, and mismatch detecting device | |
JP6700555B2 (ja) | 偏移制御回路および無線機 | |
US7944321B2 (en) | Harmonic suppressing circuit | |
JP5708139B2 (ja) | ノイズキャンセル装置 | |
JP6246326B2 (ja) | 処理回路及び信号補正方法 | |
JP6526448B2 (ja) | ピーク抑圧装置およびピーク抑圧方法 | |
WO2021024426A1 (ja) | 無線通信システムのノイズキャンセル装置 | |
JP3331978B2 (ja) | ディジタル無線通信装置の変調回路とその変調方法 | |
JP2013138308A (ja) | 信号発生装置及び信号発生方法 | |
CN108336984B (zh) | 一种凹口滤波器及相关的滤波电路 | |
JP6007297B1 (ja) | 周波数変換回路および該周波数変換回路を適用したレーダシステム | |
JP2001285088A (ja) | 送信機 | |
JPS6367925A (ja) | 負帰還増幅器 | |
JP5755875B2 (ja) | 歪み補償回路および歪み補償方法 | |
JP3647021B2 (ja) | デジタル無線機 | |
JP2011077978A (ja) | 送信機 | |
JP2016066884A (ja) | フィルタ装置 | |
JP2011120067A (ja) | 歪補償回路及び歪補償方法 | |
JP2000223953A (ja) | Ssb変調方式 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190607 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200316 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200331 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200522 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200623 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200706 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6741946 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |