CN105450966A - Method for switching HDMI input source of set top box - Google Patents
Method for switching HDMI input source of set top box Download PDFInfo
- Publication number
- CN105450966A CN105450966A CN201510952539.1A CN201510952539A CN105450966A CN 105450966 A CN105450966 A CN 105450966A CN 201510952539 A CN201510952539 A CN 201510952539A CN 105450966 A CN105450966 A CN 105450966A
- Authority
- CN
- China
- Prior art keywords
- hdmi
- cpu
- module
- hdmiswitch
- top box
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to a method for switching an HDMI input source of a set top box. An HDMI OUT, a CPU, an HDMI SWITCH and an HDMI IN are included. The method specifically comprises the following steps that a key instruction is received; whether the key instruction is a video source switching instruction or not is judged; if the key instruction is the video source switching instruction, the CPU sends an I2C bus instruction to inform an HDMI SWITCH module; the HDMI SWITCH module gates the next input port; video data are transmitted to an HDMI RX channel of the CPU; the HDMI RX channel of the CPU transmits the video data to an HDMI OUT module; and a video is output into a television. According to the invention, the HDMI input source is switched through the switch; audios and videos of the input source are transmitted to an HDMI output port through a main chip; and thus, the functions of viewing different HDMI audios and videos can be achieved.
Description
[technical field]
The invention belongs to technical field of digital television set-top, specifically refer to a kind of method that Set Top Box HDMI input source switches.
[background technology]
At present, along with the development of Digital Television, top box of digital machine is promoted in each corner in the world with universal.Along with function is constantly perfect, digital TV set-top box has the function switching HDMI input source.Switch the technology application of HDMI input source and give birth to; User can go to switch HDMI input source by remote control, makes Set Top Box export the audio frequency and video of different program source.
Set Top Box on the market generally only has an input source, i.e. the video clip of set-top-box system establishment itself.If when user wants to switch different video source on a TV, be just difficult to accomplish.
[summary of the invention]
Technical problem to be solved by this invention is a kind of method providing Set Top Box HDMI input source to switch, and realizes screen showing the HDMI video source information be switched to.
The present invention is achieved in that
The method that Set Top Box HDMI input source switches, comprises HDMIOUT, CPU, HDMISWITCH, HDMIIN; Described HDMIOUT is the HDMI output of Set Top Box, for the HDMI source of output set top box; Described CPU, for the maincenter of responsible process and interactive video data, opens corresponding video source functional module, sends out bus line command to respective modules; Described HDMISWITCH, for Set Top Box input source selects module, for responsible Switch Video peripheral hardware input HDMI source; Described HDMIIN is HDMI input; The method specifically comprises the steps:
Step 1: start;
Step 2: receive key command;
Step 3: determine whether Switch Video sourse instruction, be, then proceed to step 4, no, return step 2;
Step 4:CPU sends out I2C bus line command notice HDMISWITCH module;
Next input port, road of step 5:HDMISWITCH module gating;
Step 6: video data transmission is to the HDMIRX passage of CPU;
The HDMIRX passage of step 7:CPU video data transmission to HDMIOUT module;
Step 8: output video is to TV;
Step 9: terminate.
Whether further, also there is a timer in described HDMISWITCH module, constantly go with the set time HDMIRX passage whether conducting detecting CPU, also constantly detecting CPU has the order sending and interrupt conducting; When producing open circuit between the HDMIRX passage and HDMISWITCH module of CPU, or CPU sends and interrupts ON command, so HDMISWITCH module can drag down the HPD of HDMIIN, and external equipment video source cannot be imported in Set Top Box, then removes the buffer memory in internal memory; Last HDMISWITCH module enters park mode, and waiting for CPU order makes it again to wake up.
The invention has the advantages that: the input source removing to switch HDMI by switch, then the audio frequency and video of input source are delivered to HDMI delivery outlet by master chip, to reach the function switching and view and admire different HDMI audio frequency and video.
[accompanying drawing explanation]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is method flow schematic diagram of the present invention.
[embodiment]
The method that Set Top Box HDMI input source switches, comprises HDMIOUT, CPU, HDMISWITCH, HDMIIN; Described HDMIOUT is the HDMI output of Set Top Box, for the HDMI source of output set top box; Described CPU, for the maincenter of responsible process and interactive video data, opens corresponding video source functional module, sends out bus line command to respective modules; Described HDMISWITCH, for Set Top Box input source selects module, for responsible Switch Video peripheral hardware input HDMI source; Described HDMIIN is HDMI input; As shown in Figure 1, the method specifically comprises the steps:
Step 1: start;
Step 2: receive key command;
Step 3: determine whether Switch Video sourse instruction, be, then proceed to step 4, no, return step 2;
Step 4:CPU sends out I2C bus line command notice HDMISWITCH module;
Next input port, road of step 5:HDMISWITCH module gating;
Step 6: video data transmission is to the HDMIRX passage of CPU;
The HDMIRX passage of step 7:CPU video data transmission to HDMIOUT module;
Step 8: output video is to TV;
Step 9: terminate.
Whether also there is a timer in HDMISWITCH module, constantly go with the set time HDMIRX passage whether conducting detecting CPU, also constantly detecting CPU has the order sending and interrupt conducting; When producing open circuit between the HDMIRX passage and HDMISWITCH module of CPU, or CPU sends and interrupts ON command, so HDMISWITCH module can drag down the HPD of HDMIIN, and external equipment video source cannot be imported in Set Top Box, then removes the buffer memory in internal memory; Last HDMISWITCH module enters park mode, and waiting for CPU order makes it again to wake up.
Particularly, when user presses Source key on remote controller, CPU can produce an instruction, switches HDMI input source;
Now be divided into multimedia, DTV, HDMIIN tri-tunnel; If that user is switched to is multimedia and DTV.All will be opened the video source of corresponding function by system, the input source interface fictionalized is sent to HDMIOUT by CPU, and enters corresponding function.As multimedia can displaying video, audio frequency, picture and text.DTV can watch TV programme.When user switches to HDMIIN, CPU can open HDMIRX passage, is used for receiving outside and passes the video source of coming in.Open by I2C bus line command notice HDMISWITCH module the function selecting incision simultaneously;
When HDMISWITCH receive I2C transmit the order come time, can draw high in three tunnels according to order the HPD needing to watch Na mono-road HDMIIN.The now transfer of data of HDMIIN to CPURX end with regard to conducting.The audio, video data that RX holds can be led HDMIOUT end by CPU again.Such user just can watch the HDMI video wanting that road watched.
The present invention removes by switch the input source switching HDMI, then the audio frequency and video of input source are delivered to HDMI delivery outlet by master chip, to reach the function switching and view and admire different HDMI audio frequency and video.
The foregoing is only better enforcement use-case of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a method for Set Top Box HDMI input source switching, comprises HDMIOUT, CPU, HDMISWITCH, HDMIIN; Described HDMIOUT is the HDMI output of Set Top Box, for the HDMI source of output set top box; Described CPU, for the maincenter of responsible process and interactive video data, opens corresponding video source functional module, sends out bus line command to respective modules; Described HDMISWITCH, for Set Top Box input source selects module, for responsible Switch Video peripheral hardware input HDMI source; Described HDMIIN is HDMI input; It is characterized in that: the method specifically comprises the steps:
Step 1: start;
Step 2: receive key command;
Step 3: determine whether Switch Video sourse instruction, be, then proceed to step 4, no, return step 2;
Step 4:CPU sends out I2C bus line command notice HDMISWITCH module;
Next input port, road of step 5:HDMISWITCH module gating;
Step 6: video data transmission is to the HDMIRX passage of CPU;
The HDMIRX passage of step 7:CPU video data transmission to HDMIOUT module;
Step 8: output video is to TV;
Step 9: terminate.
2. the method for a kind of Set Top Box HDMI input source switching as claimed in claim 1, is characterized in that:
Whether also there is a timer in described HDMISWITCH module, constantly go with the set time HDMIRX passage whether conducting detecting CPU, also constantly detecting CPU has the order sending and interrupt conducting; When producing open circuit between the HDMIRX passage and HDMISWITCH module of CPU, or CPU sends and interrupts ON command, so HDMISWITCH module can drag down the HPD of HDMIIN, and external equipment video source cannot be imported in Set Top Box, then removes the buffer memory in internal memory; Last HDMISWITCH module enters park mode, and waiting for CPU order makes it again to wake up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952539.1A CN105450966A (en) | 2015-12-17 | 2015-12-17 | Method for switching HDMI input source of set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952539.1A CN105450966A (en) | 2015-12-17 | 2015-12-17 | Method for switching HDMI input source of set top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105450966A true CN105450966A (en) | 2016-03-30 |
Family
ID=55560695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510952539.1A Pending CN105450966A (en) | 2015-12-17 | 2015-12-17 | Method for switching HDMI input source of set top box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105450966A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475143A (en) * | 2018-05-10 | 2019-11-19 | 视联动力信息技术股份有限公司 | A kind of switching method and apparatus of HDMI video data |
| CN112752141A (en) * | 2019-10-30 | 2021-05-04 | 南宁富桂精密工业有限公司 | Multimedia device and method for collecting viewing information |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2919745Y (en) * | 2006-07-05 | 2007-07-04 | 海信集团有限公司 | Multi-circuit switching and extending circuit of HDMI interface and television |
| CN200950645Y (en) * | 2006-09-26 | 2007-09-19 | 青岛海信电器股份有限公司 | Multiplex HDMI signal interface switching circuit and television set |
| CN101257591A (en) * | 2008-03-12 | 2008-09-03 | 四川长虹电器股份有限公司 | Digital multimedia receiving apparatus and extending display identification data reading method thereof |
| WO2010018751A1 (en) * | 2008-08-13 | 2010-02-18 | Canon Kabushiki Kaisha | Video control apparatus and control method for video control apparatus |
-
2015
- 2015-12-17 CN CN201510952539.1A patent/CN105450966A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2919745Y (en) * | 2006-07-05 | 2007-07-04 | 海信集团有限公司 | Multi-circuit switching and extending circuit of HDMI interface and television |
| CN200950645Y (en) * | 2006-09-26 | 2007-09-19 | 青岛海信电器股份有限公司 | Multiplex HDMI signal interface switching circuit and television set |
| CN101257591A (en) * | 2008-03-12 | 2008-09-03 | 四川长虹电器股份有限公司 | Digital multimedia receiving apparatus and extending display identification data reading method thereof |
| WO2010018751A1 (en) * | 2008-08-13 | 2010-02-18 | Canon Kabushiki Kaisha | Video control apparatus and control method for video control apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475143A (en) * | 2018-05-10 | 2019-11-19 | 视联动力信息技术股份有限公司 | A kind of switching method and apparatus of HDMI video data |
| CN112752141A (en) * | 2019-10-30 | 2021-05-04 | 南宁富桂精密工业有限公司 | Multimedia device and method for collecting viewing information |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |
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| RJ01 | Rejection of invention patent application after publication |