CN1750611A - Method for controlling on and off of double CPU TV set by SCART interface - Google Patents
Method for controlling on and off of double CPU TV set by SCART interface Download PDFInfo
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- CN1750611A CN1750611A CNA2005101042835A CN200510104283A CN1750611A CN 1750611 A CN1750611 A CN 1750611A CN A2005101042835 A CNA2005101042835 A CN A2005101042835A CN 200510104283 A CN200510104283 A CN 200510104283A CN 1750611 A CN1750611 A CN 1750611A
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Abstract
A method for switching on/off double CPU television set through SCART interface, which contains setting sub-CPU for signal detection and awakening, setting No 1 and No 2 SCART interface, writing the level detection switching on information zone bit of ADC1 and ADC2 in EEPROM of CPU, sub-CPU detecting the switching signal in SCART1 or SCART2 interface and reading out user SCART setting, judging corresponded zone bit, if it 1 then switching on, if it is 0 then no any operation until the remote controller key signal coming and switching according to normal mode, when switching off, the main CPU receiving SCART switching off signal and executing switching off operation according to normal mode. Said invention can reduce power consumption.
Description
Technical field
The invention belongs to the TV set circuit technical field, more particularly relate to the design of double CPU TV set, to realize by the controlled function of SCART interface to switching on and shutting down by the on-off control method of SCART interface.
Background technology
Along with the development of TV signal digital processing technology, the performance of television set also obtains lifting at full speed.But in general, the high-performance of television set must be brought high power consumption.In order to reduce power consumption, to raise the efficiency, many high-end television sets adopt the processing mode of two CPU controls, and host CPU is handled various signal datas, and sub-CPU only is responsible for switching on and shutting down.It can solve the contradiction that high-performance must be brought high power consumption, in the high performance while of improving television set, reduces its power consumption greatly.
Television set need be controlled switching on and shutting down by the SCART interface when the outlet European Region.The control level signal is arranged in the SCART interface, and shutting down is low level, and starting shooting is high level, and the TV main frame need detect this signal.For example set-top box links to each other with TV by the SCART interface, when the closure plane top box, and the shutdown of TV automatic stand-by; And when opening set-top box, the TV Auto Power On.But the television set of this pair of CPU control is very difficult to the detection and the processing of SCART signal, thereby is difficult to by the SCART interface switching on and shutting down be controlled.
Summary of the invention
Purpose of the present invention just is to overcome above-mentioned shortcoming and defect, and the on-off control method of a kind of double CPU TV set by the SCART interface is provided.It had both adopted two CPU controls, can reduce power consumption, raise the efficiency, can allow the user pass through switching manipulation again to the audio ﹠ video equipment (as DVD or set-top box etc.) that is connected with the SCART interface with television set, the directly switching on and shutting down of control television set, and can pass through certain operation setting of remote controller with this function temporary close.
In order to achieve the above object, the present invention includes and be provided with that host CPU is responsible for complete machine software systems operations, digital video signal goes functions such as interlacing processing, integral image control, main, sub-CPU is set connects by the PC bus and carry out communication and connect separately I/O mouth by a special circuit.It is further comprising the steps of:
(1) input, the system wake-up function that sub-CPU is responsible for complete machine is set;
(2) by remote controller No. 1 SCART port and No. 2 SCART ports of whole set of television are carried out setting operation respectively by the user: will to the level detection start control information of ADC1 and ADC2 totally two flag bits write among the EEPROM of sub-CPU;
(3) under holding state, sub-CPU is if detect 1 port of SCART or the starting-up signal that 2 ports send, and the SCART that reads the user earlier is provided with, its corresponding flag bit ADC1 or ADC2 are judged, if 1, the operation of then starting shooting;
(4) if 0, then ignore this SCART starting-up signal, do not carry out any operation, arrive until remote-controlled start-up signal or button starting-up signal, press normal mode again and start shooting;
When (5) shutting down, because master, sub-CPU, press the normal step shutdown again and get final product so receive the SCART off signal by host CPU in operate as normal at this moment.This time has only sub-CPU different in work with start.
Except that general conventional func, the present invention is provided with that host CPU is responsible for the software systems operation of complete machine, digital video signal goes functions such as interlacing processing, integral image control; Input/system wake-up function that sub-CPU is responsible for complete machine is set.And make main, sub two CPU carry out communication by the connection of PC bus, in addition by special circuit connection I/O mouth separately.By this I/O mouth, the shutdown command quilt CPU that host CPU sends receives and carries out corresponding operating, can realize operations such as timing shutdown; And under holding state, sub-CPU is provided with (existing among the EEPROM of sub-CPU) if detect starting-up signal by the SCART that reads the user, and operation judges whether to start shooting.
Specifically, when the user carries out setting operation by remote controller to SCART, host CPU is communicated by letter as the slave unit transmitting terminal with sub-CPU as the main equipment transmitting terminal, will to the level detection of ADC1 start control information with to the level detection start control information of ADC2 totally two flag bits write among the EEPROM of sub-CPU; In when start, sub-CPU judges these two flag bits, if 1, then open corresponding port level detection power up function; If 0, then do not operate, press the normal mode start.
Task of the present invention comes to this and finishes.
The invention provides the on-off control method of a kind of double CPU TV set by the SCART interface.It had both adopted two CPU controls, can reduce power consumption, raise the efficiency, can allow the user pass through switching manipulation again to the audio ﹠ video equipment (as DVD or set-top box etc.) that is connected with the SCART interface with television set, the directly switching on and shutting down of control television set, and can pass through certain operation setting of remote controller with this function temporary close.It can be widely used in adopting in the television set in two CPU outlets Europe.
Description of drawings
Fig. 1 is a functional-block diagram of the present invention.
Embodiment
Embodiment 1.A kind of double CPU TV set is by the on-off control method of SCART interface, as shown in Figure 1.It comprises and is provided with that host CPU is responsible for complete machine software systems operations, digital video signal goes functions such as interlacing processing, integral image control, main, sub-CPU is set connects by the PC bus and carry out communication and connect separately I/O mouth by a special circuit.It is further comprising the steps of:
(1) input, the system wake-up function that sub-CPU is responsible for complete machine is set;
(2) by remote controller No. 1 SCART port and No. 2 SCART ports of whole set of television are carried out setting operation respectively by the user: will to the level detection start control information of ADC1 and ADC2 totally two flag bits write among the EEPROM of sub-CPU;
(3) under holding state, sub-CPU is if detect 1 port of SCART or the starting-up signal that 2 ports send, and the SCART that reads the user earlier is provided with, its corresponding flag bit ADC1 or ADC2 are judged, if 1, the operation of then starting shooting;
(4) if 0, then ignore this SCART starting-up signal, do not carry out any operation, arrive until remote-controlled start-up signal or button starting-up signal, press normal mode again and start shooting;
When (5) shutting down, because master, sub-CPU, press the normal step shutdown again and get final product so receive the SCART off signal by host CPU in operate as normal at this moment.
Embodiment 1 had both adopted two CPU controls, can reduce power consumption, raise the efficiency, can allow the user pass through switching manipulation again to the audio ﹠ video equipment (as DVD or set-top box etc.) that is connected with the SCART interface with television set, the directly switching on and shutting down of control television set, and can pass through certain operation setting of remote controller with this function temporary close.It can be widely used in adopting in the television set in two CPU outlets Europe.
Claims (1)
1. a double CPU TV set is by the on-off control method of SCART interface, it comprises and is provided with that host CPU is responsible for complete machine software systems operations, digital video signal goes interlacing processing, integral image control, master, sub-CPU are set carry out communication by the connection of I2C bus and pass through special circuit connection I/O mouth separately, it is characterized in that it is further comprising the steps of:
(1) input, the system wake-up function that sub-CPU is responsible for complete machine is set;
(2) by remote controller No. 1 SCART port and No. 2 SCART ports of whole set of television are carried out setting operation respectively by the user: will to the level detection start control information of ADC1 and ADC2 totally two flag bits write among the EEPROM of sub-CPU;
(3) under holding state, sub-CPU is if detect 1 port of SCART or the starting-up signal that 2 ports send, and the SCART that reads the user earlier is provided with, its corresponding flag bit ADC1 or ADC2 are judged, if 1, the operation of then starting shooting;
(4) if 0, then ignore this SCART starting-up signal, do not carry out any operation, arrive until remote-controlled start-up signal or button starting-up signal, press normal mode again and start shooting;
When (5) shutting down, because master, sub-CPU, press the normal step shutdown again and get final product so receive the SCART off signal by host CPU in operate as normal at this moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101042835A CN100337475C (en) | 2005-10-10 | 2005-10-10 | Method for controlling on and off of double CPU TV set by SCART interface |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101042835A CN100337475C (en) | 2005-10-10 | 2005-10-10 | Method for controlling on and off of double CPU TV set by SCART interface |
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| CN1750611A true CN1750611A (en) | 2006-03-22 |
| CN100337475C CN100337475C (en) | 2007-09-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252659B (en) * | 2007-02-25 | 2010-08-04 | 青岛海信电器股份有限公司 | Circuit and method for managing standby and complete machine powering of television set |
| CN102148947A (en) * | 2010-12-23 | 2011-08-10 | 友达光电股份有限公司 | Standby wake-up circuit of electronic device |
| CN102075719B (en) * | 2009-11-20 | 2012-06-27 | 深圳市九洲电器有限公司 | Audio and video equipment and startup and shutdown method thereof |
| CN103792985A (en) * | 2012-10-30 | 2014-05-14 | 三星电子株式会社 | Electronic device and control method thereof |
| CN110557682A (en) * | 2019-09-26 | 2019-12-10 | 四川长虹电器股份有限公司 | Intelligent television quick starting method based on dual-core starting and dual-core intelligent television |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466002B (en) * | 2007-12-21 | 2013-03-06 | 康佳集团股份有限公司 | Standby and start-up method controlled by input signal |
| TR200803992A2 (en) * | 2008-06-02 | 2009-12-21 | Vestel Di̇ji̇tal Üreti̇m Sanayi̇ A.Ş. | Input sensing device for low power consumption in stand-by |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9908291D0 (en) * | 1999-04-13 | 1999-06-02 | Pace Micro Tech Ltd | Power loopthrough |
| GB0104120D0 (en) * | 2001-02-20 | 2001-04-11 | Pace Micro Tech Plc | Remote control |
| US20050228967A1 (en) * | 2004-03-16 | 2005-10-13 | Sony Computer Entertainment Inc. | Methods and apparatus for reducing power dissipation in a multi-processor system |
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2005
- 2005-10-10 CN CNB2005101042835A patent/CN100337475C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252659B (en) * | 2007-02-25 | 2010-08-04 | 青岛海信电器股份有限公司 | Circuit and method for managing standby and complete machine powering of television set |
| CN102075719B (en) * | 2009-11-20 | 2012-06-27 | 深圳市九洲电器有限公司 | Audio and video equipment and startup and shutdown method thereof |
| CN102148947A (en) * | 2010-12-23 | 2011-08-10 | 友达光电股份有限公司 | Standby wake-up circuit of electronic device |
| CN102148947B (en) * | 2010-12-23 | 2013-01-02 | 友达光电股份有限公司 | Standby wake-up circuit of electronic device |
| CN103792985A (en) * | 2012-10-30 | 2014-05-14 | 三星电子株式会社 | Electronic device and control method thereof |
| CN103792985B (en) * | 2012-10-30 | 2017-01-18 | 三星电子株式会社 | Electronic device and control method thereof |
| CN110557682A (en) * | 2019-09-26 | 2019-12-10 | 四川长虹电器股份有限公司 | Intelligent television quick starting method based on dual-core starting and dual-core intelligent television |
| CN110557682B (en) * | 2019-09-26 | 2021-08-06 | 四川长虹电器股份有限公司 | Intelligent television quick starting method based on dual-core starting and dual-core intelligent television |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100337475C (en) | 2007-09-12 |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: HISENSE Co.,Ltd. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE Co.,Ltd. Patentee before: HISENSE ELECTRIC Co.,Ltd. |