Summary of the invention
The television set that the object of the present invention is to provide a kind of television set receiving mode control method and be used to implement this method switches to the receiving mode corresponding with this input port so that have the signal input tv audio and/or the video inputs period of the day from 11 p.m. to 1 a.m to control television set automatically.
Television set provided by the invention, comprise: signal receiving unit, audio channels switching unit, video channel switch unit, control unit, video processing unit, audio treatment unit, also comprise: command unit, when being used for signal on an audio channels switching unit and/or video channel switch unit input terminal and changing, indication control unit control TV switches between television reception pattern and the corresponding receiving mode of described detected signal.
Optionally, described command unit comprises: detecting unit, link to each other with each input port of video channel switch unit with audio channels switching unit, be used to detect each input and signal condition whether occur and change, and input port sign and variable condition that signal condition changes will occur and offer control unit.
Optionally, described command unit comprises: with the control unit of described input port associated devices, be used for the state notifying television set control unit with the signal output of described associated devices.
Wherein, the control unit of described associated devices comprises: the control unit of the DVD unit of television internal.
Television set provided by the invention is to the method for receiving mode control, and comprising: the A. command unit sends the receiving mode conversion instruction; B. tv control unit be converted to according to the current receiving mode of commands for controlling that receives and the television reception pattern between switch.
Optionally, described steps A comprises: the signal to audio channels switching unit and/or video channel switch unit input port detects; Detected signal sends the receiving mode conversion instruction when changing.
Preferable, the described step that signal is detected comprises: whether have voltage or electric current input, or whether the voltage or the electric current that detect input port change if detecting input port.
Optionally, described steps A comprises: command unit sends the receiving mode conversion instruction during with signal output audio passage switch unit and/or video channel switch unit input port.
Optionally, further comprise before the steps A: it is changeable setting the input port that needs receiving mode to automatically switch; Described input port is for being set at switchable input port.
As seen from the above, when DVD player was put into video disc and play automatically, corresponding TV set can automatically switch under the corresponding pattern, avoids user's operation, provides bigger facility to the user.
When play content only is audio frequency, can keep the receiving mode of current picture constant.Vice versa, when play content only is video, can keep the receiving mode of current sound constant.
And, can set the audio frequency and/or the video inputs of television set in advance, the port that hope is automaticallyed switch is made as switching effectively, like this, when realizing automaticallying switch, only automaticallyes switch to being set to switch effective port.
Embodiment
Fig. 1 shows the schematic diagram of television set of the present invention, and as shown in Figure 1, television set of the present invention comprises: signal receiving unit, audio channels switching unit, video channel switch unit, control unit, audio treatment unit, video processing unit, detecting unit.
Signal receiving unit is used to receive multiple signal, and this unit comprises television set tuner port, audio access and video access interface, as AV port, high definition access interface or VGA access interface etc.Each audio access of signal receiving unit links to each other with each input port of audio channels switching unit, and each video access interface links to each other with each input port of video channel switch unit.
Audio channels switching unit links to each other with control unit with audio treatment unit, be used for according to switching command from control unit, realize the input port that they are different and the disconnection and the connection of audio treatment unit, thereby realize that selecteed television set receiving mode corresponding audio access interface is switched to audio treatment unit.
The video channel switch unit links to each other with control unit with video processing unit, is used for according to from the switching command of control unit, realizes the input port that they are different and the disconnection and the connection of video processing unit.Be switched to video processing unit with the video access interface of realizing selecteed television set receiving mode correspondence.
Control unit is used to receive the instruction of detecting unit, and according to the commands for controlling audio channels switching unit of detecting unit, the switching of video channel switch unit.Also receive the instruction of remote controller and call corresponding OSD menu and be shown to the user.
Audio treatment unit and video processing unit are used for respectively audio signal that transmits and vision signal are handled, to realize the broadcast of sound and video.
Command unit is used for judging whether that signal imports certain audio access (or input port of audio channels switching unit) and video access interface (or input port of video channel switch unit), and notifies control unit when judgement has the signal input or when input signal disappears.
Whether wherein, command unit realizes with detecting unit that as shown in Figure 1 its corresponding hardware can be a detection chip, links to each other with the input port of audio channels switching unit with the video channel switch unit, detect having signal to import these input ports.Detecting unit also can adopt other modes to judge the unit that whether has signal to import described input port, and detecting unit as shown in Figure 2 is the control unit of the DVD assembly of television internal.
Among the embodiment shown in Fig. 1.Whether detecting unit has voltage or electric current to judge whether the input of external equipment signal by detecting each input port, under being in holding state, external equipment has electric current/pressure signal, whether also can detect vicissitudinous signal, whether electric current/the pressure that promptly detects input changes, and only just thinking under situation about changing has the signal input.Port id and the 0 and 1 signal signalisation control unit as testing result can be set, this need encode to each input port, ID as 0011 left side, three bit representation input ports, audio input port as corresponding A V1, there is the signal input on the right 1 for expression, and detecting unit sends to control unit 0011 so has the signal input with regard to the audio port that expression connects AV1; Disappear and then send 0010 this port of expression again and do not have signal when detecting this passage outer signal.This testing process can adopt the mode to each input port poll in cycle to detect.In this way, can notify which input port of television set control unit that signal is arranged.
Certainly, the function of detecting unit also can be arranged in the television set control unit, is directly removed to detect the input port of audio channels switching unit and video channel switch unit by control unit.
Shown in Fig. 2 is the example of the control unit of television internal DVD unit as command unit, wherein, DVD unit output also is connected on the switch unit input, the control unit of DVD unit links to each other by string line with the control unit of television set, control unit judgement DVD video disc by the DVD unit is play/is stopped, and notify the control unit of television set with corresponding information, the control unit of television set is according to the switching from the information Control television set receiving mode of the control unit of DVD unit.
Be that the present invention is described in detail for example to automatically switch to the DVD pattern below.
At first, realize that in the mode that detects audio channels switching unit, video channel switch unit input port it is that example illustrates method of the present invention that television set automatically switches to the DVD pattern.When DVD player insertion video disc is play the video disc program automatically, the signal of DVD player broadcast program passes through holding wire, as by being connected the holding wire of television set AV terminal or high definition terminal, be transferred to television set, the detecting unit that is provided with in the television set detects the input port of switch unit, when this detecting unit detects the corresponding port in signal (promptly showing as curtage) when input, the instruction of sending the pattern that switches to described port correspondence to control unit, arranged.For example DVD player is connected television set AV2 terminal, when detecting AV2 Voice ﹠ Video terminal the signal input is arranged, and then switches under the AV2 pattern, has so just realized that television set automatically switches under the AV2 pattern, and the user can watch the DVD program of DVD player broadcast.
Below the changing method under this mode is elaborated, as shown in Figure 3, may further comprise the steps:
Step 301: under the OSD menu input port that can automatically switch being set is the automatic switchover effective efficiency.
Can be provided with respectively at the input port of each audio channels switching unit, video channel switch unit.As the AV1 port being set for automaticallying switch, the AV2 port is for automaticallying switch.When being provided with, according to the prompting of OSD menu, the automatic transfer switch of the port that selection can be switched is for effective.When certain port switch places " effectively ", can trigger automatic switchover, when certain port switch placed engineering noise, then expression can not trigger automatic switchover.For the port that is set to engineering noise, mask detection to this port, whether this port connected equipment has signal can not switch to this port.
Step 302: detecting unit detects the port that is set to " effectively ", trigger switching signal when detecting the DVD signal, report control unit, and can send information by control unit before automaticallying switch selects to user prompt, can select whether to switch, after receiving the affirmation information that the user sends by remote controller, execution in step 303.
Prompting user's mode can be: control unit shows the pattern that whether switches to the current correspondence of DVD by display screen, as the AV2 pattern; In addition, when television set is supported picture-in-picture, also can further show the menu of selecting for the user: as, switch to AV2 pattern all over the screen or switch to picture-in-picture mode and play the AV2 signal program, or do not switch.
Step 303: control unit control audio passage switch unit, video channel switch unit are connected the corresponding input end mouth, are about to television set and switch under the associative mode of DVD playing back, promptly switch under the pattern of AV2 in this example.When supporting above-mentioned pair of image mode (as picture-in-picture, picture out picture), according to user's selection, television set control unit may command enters two image modes, and plays the program of described AV2 port by one of them picture.
By detection mode to different input ports, television set can be realized only switching at the port that signal is arranged, as, when only detecting audio input port signal arranged (as put into be CD, MP3 dish), after reporting control unit, control unit is only given an order to the audio frequency switch control unit and is only carried out the switching of voice-grade channel, keeps the picture program not switch.Corresponding is when only carrying the CD of picture when what put into, only can detect video port signal is arranged, after the information that control unit reception detecting unit reports, only give an order to video control unit and only carry out the switching of video channel, television set keeps the sound of current program to continue to play.
Below, the television set with the built-in DVD unit shown in Fig. 2 is described again.When putting into the broadcast of DVD video disc, the control unit of DVD unit can send a signal to the control unit of television set, notify its DVD player to begin to read dish, the control unit control audio passage switch unit of television set, video channel switch unit switch to the input port that inner DVD unit connect, and (port of the switch unit that built-in DVD is shared is a fixed port, therefore can be set in advance in the television set control unit), realized that promptly television set switches under the corresponding pattern of watching DVD player.Because the control unit of DVD unit can be discerned the laser disc of whether putting into the DVD laser disc and having put into which kind of type, what the control unit of the visible DVD unit of cause can be judged the output of DVD unit is audio frequency or vision signal or two kinds of signals, can think that the control unit of DVD unit belongs to a special detecting unit.
Specifically, as shown in Figure 4, this handoff procedure may further comprise the steps:
Step 401: the input port that the employed audio channels switching unit in built-in DVD unit, video channel switch unit are set under the OSD menu is the automatic switchover effective efficiency.
The control unit of step 402:DVD unit is judged and is put into the DVD video disc and when playing, send the control unit that signal is given television set.
Certainly after the television set control unit received signal, also can add the step whether the access customer selection is switched and whether adopted the picture-in-picture mode to switch.
Step 403: tv audio passage switch unit, the video channel switch unit input of television set control unit control appointment are connected, and promptly switch under the receiving mode of the correspondence that receives the DVD player signal.
And, as mentioned above, the DVD unit can identify the form of the video disc of putting into, video disc as forms such as VCD/CD/MP3/PIC, can represent the video disc form to send to the television set control unit by DVD unit controls unit with two digits, the television set control unit be selected to carry out audio frequency or/and the switching of video channel according to form.Can certainly carry out audio frequency or/and the switching of video channel by the DVD unit notice that sends instructions, as two digits, one is used for corresponding video, whether one is used for corresponding audio frequency, switch with 0 and 1 representative, switches as 11 expression video/audios, 10 expression video switchs, 01 expression audio frequency switches.The television set control unit switches accordingly according to the instruction of DVD unit.Only can realize switching like this, or only to the switching of picture, perhaps two passages switch simultaneously to sound.
Switch back the process of previous status for television set, may further comprise the steps: the DVD blackout that detects the AV2 terminal when detecting unit, for example when DVD player enters holding state or shutdown, signal output is not being arranged, detecting unit then sends signalisation television set control unit; The television set control unit switches back former television set pattern.Concrete handoff procedure repeats no more owing to principle and last similar.
For another example, under the pattern of non-reception DVD correspondence, when the user inserted the DVD video disc, the automatic perception in DVD unit had video disc to insert, DVD unit starting and by input/output port notice television set control unit, to switch under the corresponding receiving mode.When playing programs finished, detecting unit detected programme signal and disappears, and notice television set control unit is to switch back original television set receiving mode.When the user sees TV, when wanting to use the built-in DVD unit to see video disc, then directly video disc is inserted into the DVD unit like this, television set jumps to DVD playing back video disc under the corresponding receiving mode automatically.
In addition, when the control unit of DVD player and the communication of television set control unit, the content of communication can be abundanter, as sending instruction by the control unit of control unit to the DVD unit of television set, for example when television set leaves the DVD pattern, as be transformed into television set pattern or when shutdown, and then can send an instruction to DVD unit controls unit, after receiving the unit, DVD enter halted state or holding state.
Further specify implementation of the present invention with concrete instance below:
Here, automatically switching to the DVD pattern with the television set of built-in DVD is that example is described.To realize following function in this example:
1) under non-DVD pattern, puts into and jump to the DVD receiving mode after the video disc automatically and begin to read dish and play.
2) jump to the DVD receiving mode after: if after switching to non-DVD receiving mode, the DVD unit must enter holding state, promptly stop to read dish; If switch back the DVD receiving mode once more, the DVD unit must continue to read dish.
For function 1), can adopt following mode to realize: between the control unit of television set control unit and DVD unit, to increase a communication interface, realize the communication of the control unit of television set control unit and DVD unit, thereby carry out the DVD control of conversion automatically.Concrete circuit, the DVD video interface place on the Core of TV set integrated circuit board is reserved with the IR pin, with the I/O interface of this pin as movement; And open RGB/CVBS pin on the DVD player central layer card, be connected with the IR pin of machine core board DVD video interface, when putting into the DVD video disc, the control unit of DVD unit detects the video disc warehouse entry, I/O interface by the DVD unit goes out signal (control unit that is equivalent to DVD sends signal), the MCU of television set (control unit that is equivalent to television set) obtains the signal that the DVD unit sends by reading this I/O interface, when reading signal, MCU control television set is transformed into the DVD receiving mode, and DVD reads the unit dish and plays.Specifically can be as follows:
At DVD player core and Core of TV set integrated circuit board one I/O interface communication hwDVDAutoEnterOn_Pin is set, partly reads this interface level by television set and change; The hwDVDAutoEnterOn_Pin flag bit can be provided with following value and corresponding implication:
Flag bit is 0: the port low level represents that the DVD unit is in holding state, and television set is at the receiving mode of non-DVD;
Flag bit is 1: the port high level represents that the DVD unit is in running order, and television set is in the receiving mode of DVD;
Flag bit jumps to 1 from 0: the port level from low to high, television set control unit control jumps to the DVD receiving mode from other receiving modes; If do not jump to the DVD receiving mode, then the mark position returns 0.
By above-mentioned flag bit, can realize the switching of television set receiving mode.
For above-mentioned functions 2), mode realizes below adopting: for the television set of built-in DVD unit, employing comprises the DVD unit of sustainable memory body (Last Memory), after television set switches to non-DVD receiving mode, the DVD unit enters standby mode, and the DVD video disc stops to play, and relies on the breakpoint of the preceding DVD video disc broadcast of sustainable memory body record standby of DVD unit, after switching back the DVD receiving mode once more, according to the broadcast before the record continuation breakpoint of sustainable memory body.
Be specific embodiment above with DVD to the present invention carry out detailed description.Be understood that not being the port that is detected can only be effective to DVD player, the present invention is equally applicable to other different execution modes, for example detection of high definition port, VGA port or the like.