KR950035084A - 고감도를 보증할 수 있는 위성 방송용 컨버터의 스위칭 회로 - Google Patents
고감도를 보증할 수 있는 위성 방송용 컨버터의 스위칭 회로 Download PDFInfo
- Publication number
- KR950035084A KR950035084A KR1019950018153A KR19950018153A KR950035084A KR 950035084 A KR950035084 A KR 950035084A KR 1019950018153 A KR1019950018153 A KR 1019950018153A KR 19950018153 A KR19950018153 A KR 19950018153A KR 950035084 A KR950035084 A KR 950035084A
- Authority
- KR
- South Korea
- Prior art keywords
- circuit
- pulse signal
- switching
- band
- converter according
- 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
- 230000035945 sensitivity Effects 0.000 title abstract 2
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 230000010355 oscillation Effects 0.000 claims 2
- 239000000284 extract Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
- H03K9/06—Demodulating pulses which have been modulated with a continuously-variable signal of frequency- or rate-modulated pulses
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
- G01R23/15—Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Superheterodyne Receivers (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims (7)
- 서로 다른 발진 주파수를 갖고 있고 BS(위성 방송) 컨버터에 내장되어 있는 복수의 국부 발진기들 사이를 BS튜너로부터 전송되는 펄스 신호에 따라 전환하되, 상기 펄스 신호가 전원 전압에 밴드 스위칭 펄스 신호를 중첩함으로써 형성되거나, 또는 전원 전압만으로 형성되어 있는 BS 컨버터의 스위칭 회로에 있어서, 상기 BS튜너로부터의 펄스 신호를 받아들여, 상기 밴드 스위칭 펄스 신호의 주파수 성분만을 추출해서, 추출된 펄스 신호를 출력하는 필터 회로; 상기 필터 회로로부터의 추출 펄스 신호를 증폭하여, 증폭된 펄스 신호를 출력하는 증폭기 회로; 상기 증폭기 회로로부터의 증폭펄스신호를 정류하는 정류회로; 상기 정류 회로에서 얻어진 DC(직류) 전압을 기준 전압과 비교하여, 상기 밴드 스위칭 펄스 신호가 전원 전압에 중첩되어 있는 지의 여부를 나타내는 신호를 출력하는 비교기 회로; 및 상기 비교기 회로로부터의 신호를 수신하여 상기 국부 발진기들 중에서, 상기 비교 처리의 결과에 대응하는 발진 주파수를 갖는 국부 발진기를 구동하는 드라이브 회로를 포함하는 것을 특징으로 하는 BS컨버터의 스위칭 회로.
- 제1항에 있어서, 상기 정류 회로는 다이오드를 포함하는 것을 특징으로 하는 BS컨버터의 스위칭 회로.
- 제1항에 있어서, 상기 필터 회로는 로우 패스 필터인 것을 특징으로 하는 S컨버터의 스위칭 회로.
- 제1항에 있어서, 상기 필터 회로는 밴드 패스 필터인 것을 특징으로 하는 BS컨버터의 스위칭 회로.
- 제1항에 있어서, 상기 증폭기 회로는 상기 추출 펄스 신호의 증폭률을 조정하는 증폭률 조절 수단을 포함하는 것을 특징으로 하는 BS컨버터의 스위칭 회로.
- 제1항에 있어서, 기준 전압을 조정하는 기준 전압 조정 수단을 포함하는 것을 특징으로 하는 BS컨버터의 스위칭 회로.
- 제1항에 있어서, 상기 정류 회로는 필터 수단을 갖춘 것을 특징으로 하는 BS컨버터의 스위칭 회로.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP95-099285 | 1995-04-25 | ||
JP95-99285 | 1995-04-25 | ||
JP7099285A JP2988844B2 (ja) | 1995-04-25 | 1995-04-25 | 衛星放送用コンバータのスイッチング回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950035084A true KR950035084A (ko) | 1995-12-30 |
KR0156306B1 KR0156306B1 (ko) | 1998-12-15 |
Family
ID=14243387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950018153A Expired - Fee Related KR0156306B1 (ko) | 1995-04-25 | 1995-06-29 | 고감도를 보증할 수 있는 위성 방송용 컨버터의 스위칭 회로 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5649311A (ko) |
EP (1) | EP0740415B1 (ko) |
JP (1) | JP2988844B2 (ko) |
KR (1) | KR0156306B1 (ko) |
DE (1) | DE69522205T2 (ko) |
TW (1) | TW264589B (ko) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI98106C (fi) * | 1994-11-25 | 1997-04-10 | Nokia Mobile Phones Ltd | Matkapuhelin ja matkapuhelimen liitäntäjärjestely |
US6434374B1 (en) * | 1996-03-29 | 2002-08-13 | Thomson Licensing S.A. | Apparatus for controlling the conversion gain of a down converter |
JP3414604B2 (ja) * | 1996-12-27 | 2003-06-09 | シャープ株式会社 | 2出力低雑音ダウンコンバータ回路 |
FR2764760B1 (fr) * | 1997-06-17 | 2001-07-06 | Thomson Multimedia Sa | Protocole de commande de circuits utilises pour la reception de signaux hyperfrequence et dispositif mettant en oeuvre le protocole |
US7463863B1 (en) * | 1997-08-08 | 2008-12-09 | Agere Systems, Inc. | Wireless terminal adapted for detachably connecting with a radio |
US7082294B2 (en) * | 2000-06-26 | 2006-07-25 | Thomson Licensing | Self-adaptive frequency band-pass filtering device in microwave signal transceiver |
JP2003046357A (ja) | 2001-07-26 | 2003-02-14 | Sharp Corp | 高インピーダンス回路 |
JP2003124832A (ja) * | 2001-07-26 | 2003-04-25 | Sharp Corp | 衛星放送受信用コンバータ及び衛星放送受信システム |
US6816203B2 (en) * | 2001-08-28 | 2004-11-09 | Thomson Licensing S.A. | Method and apparatus for isolating noise from a tuner in a television signal receiver |
JP3898187B2 (ja) * | 2004-01-28 | 2007-03-28 | Necエレクトロニクス株式会社 | 衛星放送用コンバータのスイッチ回路 |
JP3863538B2 (ja) | 2004-06-01 | 2006-12-27 | Necエレクトロニクス株式会社 | 衛星放送用コンバータのスイッチ回路 |
JP3942608B2 (ja) | 2004-07-07 | 2007-07-11 | Necエレクトロニクス株式会社 | 衛星放送用コンバータのスイッチ回路 |
US7535262B2 (en) * | 2004-10-19 | 2009-05-19 | International Rectifier Corporation | High voltage level shifting by capacitive coupling |
JP5535896B2 (ja) | 2007-03-26 | 2014-07-02 | トムソン ライセンシング | 6ポート線形ネットワークシングルワイヤマルチスイッチ送受信機 |
DE202009002812U1 (de) * | 2009-02-27 | 2009-05-20 | Beck, Martin | Empfangsfrequenzumsetzer mit Anzeigevorrichtung |
JP4980485B1 (ja) | 2011-01-24 | 2012-07-18 | シャープ株式会社 | 半導体集積回路 |
JP2013070339A (ja) | 2011-09-26 | 2013-04-18 | Sharp Corp | 低雑音コンバータ |
JP7155042B2 (ja) * | 2019-02-22 | 2022-10-18 | ホシデン株式会社 | センサ制御装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2350514A1 (de) * | 1973-10-09 | 1975-04-30 | Endress Hauser Gmbh Co | Schaltungsanordnung zur anzeige von frequenzaenderungen einer wechselspannung |
US4538175A (en) * | 1980-07-11 | 1985-08-27 | Microdyne Corporation | Receive only earth satellite ground station |
JPS5861547U (ja) * | 1981-10-19 | 1983-04-25 | デイエツクスアンテナ株式会社 | 衛星放送受信機 |
US4554552A (en) * | 1981-12-21 | 1985-11-19 | Gamma-F Corporation | Antenna feed system with closely coupled amplifier |
JPS60149227A (ja) * | 1984-01-13 | 1985-08-06 | Sony Corp | Shf受信機 |
IT1223039B (it) * | 1987-11-02 | 1990-09-12 | Brionvega Spa | Procedimento e apparecchiatura per l'invio di segnali di comando ad attuatori negli impianti di ricezione televisivi da satellite |
DE3808280A1 (de) * | 1988-03-12 | 1989-09-21 | Philips Patentverwaltung | Einrichtung zum unterscheiden zwischen einer ersten und einer zweiten frequenz von signalen |
KR910003234B1 (ko) * | 1988-05-18 | 1991-05-24 | 삼성전자 주식회사 | 위성방송 수신용 저잡음 블럭 변환기 |
GB8820097D0 (en) * | 1988-08-24 | 1988-09-28 | Racal Mesl Ltd | Radio signal polarising arrangements |
JPH0486027A (ja) * | 1990-07-27 | 1992-03-18 | Maspro Denkoh Corp | 衛星受信システム |
DE4025241A1 (de) * | 1990-08-09 | 1992-02-13 | Thomson Brandt Gmbh | Mikrowellen-empfangsanlage |
JP2552030B2 (ja) * | 1990-09-27 | 1996-11-06 | マスプロ電工株式会社 | 衛星信号受信装置 |
-
1995
- 1995-04-25 JP JP7099285A patent/JP2988844B2/ja not_active Expired - Fee Related
- 1995-06-05 US US08/464,560 patent/US5649311A/en not_active Expired - Lifetime
- 1995-06-07 TW TW084105743A patent/TW264589B/zh not_active IP Right Cessation
- 1995-06-15 DE DE69522205T patent/DE69522205T2/de not_active Expired - Lifetime
- 1995-06-15 EP EP95304137A patent/EP0740415B1/en not_active Expired - Lifetime
- 1995-06-29 KR KR1019950018153A patent/KR0156306B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR0156306B1 (ko) | 1998-12-15 |
TW264589B (en) | 1995-12-01 |
EP0740415B1 (en) | 2001-08-16 |
US5649311A (en) | 1997-07-15 |
DE69522205T2 (de) | 2002-05-08 |
JP2988844B2 (ja) | 1999-12-13 |
JPH08293812A (ja) | 1996-11-05 |
DE69522205D1 (de) | 2001-09-20 |
EP0740415A1 (en) | 1996-10-30 |
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