KR100202083B1 - 영상 수신기기의 주파수 변동 보정방법 - Google Patents
영상 수신기기의 주파수 변동 보정방법 Download PDFInfo
- Publication number
- KR100202083B1 KR100202083B1 KR1019960001630A KR19960001630A KR100202083B1 KR 100202083 B1 KR100202083 B1 KR 100202083B1 KR 1019960001630 A KR1019960001630 A KR 1019960001630A KR 19960001630 A KR19960001630 A KR 19960001630A KR 100202083 B1 KR100202083 B1 KR 100202083B1
- Authority
- KR
- South Korea
- Prior art keywords
- oscillation frequency
- television broadcast
- broadcast signal
- signal
- frequency
- 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
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
- H04N5/50—Tuning indicators; Automatic tuning control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
- H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
-
- 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
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Marketing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
- Television Receiver Circuits (AREA)
Abstract
Description
Claims (4)
- 메인 튜너부의 채널 선국이 완료되었을 경우에 서브 튜너부가 상기 메인 튜너부 와 동일한 채널을 선국하게 하는 제1과정과, 상기 제1과정에서 서브 튜너부의 채널 선국이 완료될 경우에 서브 튜너부의 자동 미동조 조정을 수행하는 제2과정과, 상기 제2과정에서 자동 미동조 조정을 수행한 서브 튜너부의 국부 발진 주파수로 메인 튜너부의 자동 미동조 조정을 수행하는 제3과정으로 제어됨을 특징으로 하는 영상 수신기기의 주파수 보정 제어 방법.
- 청구항 1에 있어서, 상기 제1과정은, 서브 튜너부가 사용 중인지를 판단하고, 사용중이 아닐 경우에 메인 튜너부 와 동일한 채널을 선국하게 하는 것을 특징으로 하는 영상 수신기기의 주파수 보정 제어 방법.
- 청구항 1에 있어서, 상기 제2과정은 시간의 경과를 판단하고, 미리 결정된 시간이 경과될 경우에 자동 미동조 조정을 수행하는 것을 특징으로 하는 영상 수신기기의 주파수 보정 제어 방법.
- 청구항 1에 있어서, 상기 제3과정은 메인 튜너부의 국부 발진 주파수와 서브 튜너부의 국부 발진 주파수의 차를 검출하고, 검출한 국부 발진 주파수의 차가 미리 설정된 기준값 이상일 경우에 메인 튜너부에 자동 미동조 조정을 수행하는 것을 특징으로 하는 영상 수신기기의 주파수 보정 제어 방법.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960001630A KR100202083B1 (ko) | 1996-01-25 | 1996-01-25 | 영상 수신기기의 주파수 변동 보정방법 |
| US08/788,757 US5929944A (en) | 1996-01-25 | 1997-01-24 | Frequency variation compensating method for a video receiving apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960001630A KR100202083B1 (ko) | 1996-01-25 | 1996-01-25 | 영상 수신기기의 주파수 변동 보정방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970060898A KR970060898A (ko) | 1997-08-12 |
| KR100202083B1 true KR100202083B1 (ko) | 1999-06-15 |
Family
ID=19450091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960001630A Expired - Fee Related KR100202083B1 (ko) | 1996-01-25 | 1996-01-25 | 영상 수신기기의 주파수 변동 보정방법 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5929944A (ko) |
| KR (1) | KR100202083B1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010075983A (ko) * | 2000-01-21 | 2001-08-11 | 윤종용 | 영상처리시스템에서의 튜너장치 |
| KR100587277B1 (ko) * | 1999-02-08 | 2006-06-08 | 엘지전자 주식회사 | 디지털 티브이(DigitalTV)의 이상 검출 장치 및 방법 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW456148B (en) | 1998-06-16 | 2001-09-21 | United Video Properties Inc | Interactive television program guide with simultaneous watch and record capabilities |
| CN1867068A (zh) | 1998-07-14 | 2006-11-22 | 联合视频制品公司 | 交互式电视节目导视系统及其方法 |
| US6888580B2 (en) * | 2001-02-27 | 2005-05-03 | Ati Technologies Inc. | Integrated single and dual television tuner having improved fine tuning |
| US6897904B2 (en) | 2002-01-04 | 2005-05-24 | Microsoft Corporation | Method and apparatus for selecting among multiple tuners |
| KR100995447B1 (ko) * | 2002-04-08 | 2010-11-18 | 소니 주식회사 | 튜너 및 수신 장치 |
| KR100796864B1 (ko) * | 2005-05-03 | 2008-01-22 | 엘지전자 주식회사 | 지상파 dmb 수신기에 있어서 채널 전환 제어방법 |
| KR100771789B1 (ko) * | 2005-08-04 | 2007-10-30 | 삼성전기주식회사 | 비디오신호 왜곡보정기능 갖는 tv 수신기 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682234A (en) * | 1985-12-31 | 1987-07-21 | North American Philips Consumer Electronics Corp. | Video noise reduction in picture-in-picture television receiver |
| NL192712C (nl) * | 1988-12-08 | 1997-12-02 | Samsung Electronics Co Ltd | Video-inrichting, ingericht voor het weergeven van ten minste een sub-beeld in een hoofdbeeld. |
| KR0178536B1 (ko) * | 1991-03-11 | 1999-04-15 | 강진구 | 동종 프로그램 채널 선택방법 |
| JP3004105B2 (ja) * | 1991-11-15 | 2000-01-31 | 株式会社東芝 | テレビジョン受像機 |
| US5371550A (en) * | 1991-12-25 | 1994-12-06 | Casio Computer Co., Ltd. | Television receiver with auto-tuning system |
| JP3360705B2 (ja) * | 1994-12-21 | 2002-12-24 | ソニー株式会社 | 放送受信装置および放送受信方法 |
| JPH08256297A (ja) * | 1995-03-17 | 1996-10-01 | Toshiba Corp | 2画面テレビ受像機 |
| US5729300A (en) * | 1995-06-07 | 1998-03-17 | Samsung Electronics Co., Ltd. | Double-screen simultaneous viewing circuit of a wide-television |
| US5754253A (en) * | 1996-01-11 | 1998-05-19 | Lg Electronics Inc. | Apparatus for generating a plurality of quasi-moving PIP/POP screens |
-
1996
- 1996-01-25 KR KR1019960001630A patent/KR100202083B1/ko not_active Expired - Fee Related
-
1997
- 1997-01-24 US US08/788,757 patent/US5929944A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100587277B1 (ko) * | 1999-02-08 | 2006-06-08 | 엘지전자 주식회사 | 디지털 티브이(DigitalTV)의 이상 검출 장치 및 방법 |
| KR20010075983A (ko) * | 2000-01-21 | 2001-08-11 | 윤종용 | 영상처리시스템에서의 튜너장치 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970060898A (ko) | 1997-08-12 |
| US5929944A (en) | 1999-07-27 |
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