CN105655838A - Power energy control method and power energy control system for HDMI connector - Google Patents
Power energy control method and power energy control system for HDMI connector Download PDFInfo
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- CN105655838A CN105655838A CN201511001233.4A CN201511001233A CN105655838A CN 105655838 A CN105655838 A CN 105655838A CN 201511001233 A CN201511001233 A CN 201511001233A CN 105655838 A CN105655838 A CN 105655838A
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- supply energy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
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Abstract
An embodiment of the invention provides a power energy control method and a power energy control system for an HDMI connector. The power energy control method comprises the steps of when a control chip detects accessing of HDMI equipment into an HDMI interface of an HDMI connector, determining the type of the HDMI equipment; performing setting which corresponds with the type on the power energy channel of the HDMI connector; and after setting which corresponds with the type is performed on the power energy channel, making a HDMI transmission channel which is controlled by the HDMI connector and corresponds with the type in an open state so that the HDMI connector transmits data through the HDMI transmission channel. The power energy control method and the power energy control device can realize a fact that power energy control of the HDMI connector corresponds with the operation mode of the HDMI connector, thereby ensuring normal operation of the HDMI connector.
Description
Technical field
The present invention relates to power control techniques field, it is specifically related to power supply energy control method and the system of a kind of HDMI (HighDefinitionMultimediaInterface, high-definition multimedia interface) junctor.
Background technology
HDMI is the tailored version digital interface of a kind of applicable image transmission, can transmit audio frequency and signal of video signal simultaneously, and HDMI mainly contains HDMIIN interface (HDMI input interface) and HDMIOUT interface (HDMI output interface); Along with the development of AIO (AllInOne, integration) technology, the HDMIcombo (junctor) of HDMIIN interface capable of being combined and HDMI arises at the historic moment.
HDMI connector is mainly connected between main frame and HDMI equipment, transmits audio frequency and signal of video signal between main frame and HDMI equipment; HDMI connector mainly contains two kinds of operating mode, when one is for HDMI connector connection HDMISource equipment (transmission equipment), audio frequency and the signal of video signal that HDMISource equipment sends can be transferred to main frame, thus on main frame, realize the broadcasting of audio frequency and signal of video signal, when another kind of HDMI connector connects HDMISink equipment (receiving equipment), audio frequency and the signal of video signal that main frame exports can be transferred to HDMISink equipment.
When HDMI connector is in different operating mode, the control mode of the power supply energy of HDMI connector is also different, operating mode residing for the power supply energy control of HDMI connector and HDMI connector must be made corresponding, otherwise bring very big impact by the normal operation of HDMI connector; Such as, when HDMI connector connects HDMISink equipment, if main frame inserted the HDMIIN cable of HDMI connector before not having to start shooting, so the power supply energy of HDMI connector can anti-tank to main frame, making main frame read data occurs abnormal, if main frame is by SMBus bus (SystemManagementBus, system administration bus) read EDID (ExtendedDisplayIdentificationData, extending display identification data) data appearance exception etc., cause HDMI connector to occur to HDMISink equipment transmission data abnormal;
Visible, for the operating mode that HDMI connector is different, the power supply energy of HDMI connector is carried out corresponding precisely control, make HDMI connector power supply energy control to HDMI connector residing for operating mode corresponding, ensure the normal operation of HDMI connector, become the problem that those skilled in the art need to consider.
Summary of the invention
In view of this, the embodiment of the present invention provides power supply energy control method and the system of a kind of HDMI connector so that HDMI connector power supply energy control with HDMI connector residing for operating mode corresponding, guarantee HDMI connector normal operation.
For achieving the above object, the embodiment of the present invention provides following technical scheme:
A kind of power supply energy control method of HDMI connector, comprising:
Control chip detection is to when having HDMI equipment access to the HDMI of HDMI connector, it is determined that the type of described HDMI equipment;
The power supply energy passage of HDMI connector is carried out the setting corresponding to described type;
After described power supply energy passage is carried out corresponding to described type setting, the HDMI transmission path corresponding to described type that the transmodulator of control HDMI connector controls is in the state of opening, so that HDMI connector transmits data by described HDMI transmission path.
Optionally, described control chip detection comprises to the HDMI having HDMI equipment access to HDMI connector:
When detecting that HDMI cable transmission has equipment access signal, it is determined that have HDMI equipment access HDMI; Wherein, during described HDMI access HDMI equipment, trigger described HDMI cable transmission equipment access signal.
Optionally, the type of described HDMI equipment comprises: HDMISource equipment;
Described determine that the type of described HDMI equipment comprises:
If detecting, the transmission of HDMI input data line has the first signal, then determine that described type is HDMISource equipment; Wherein, during described HDMI access HDMISource equipment, trigger described HDMI input data line and transmit the first signal.
Optionally, the described power supply energy passage to HDMI connector carries out the setting corresponding to described type and comprises:
HDMI out-put supply energy is set to low position, and HDMI input power energy is set to a high position.
Optionally, described HDMI out-put supply energy be set to low position comprise:
Arranging the first switching channel and be in closing condition, described first switching channel is the switching channel that the power supply energy that control chip exports is converted to HDMI out-put supply energy;
The described power supply energy by HDMI input is set to a high position and comprises:
Arranging the 2nd switching channel and be in the state of opening, described 2nd switching channel is the switching channel of HDMI out-put supply energy transformation to HDMI input power energy.
Optionally, the HDMI transmission path corresponding to described type that the transmodulator of described control HDMI connector controls is in the state of opening and comprises:
Control described transmodulator and HDMI transmission path is switched to HDMI input pattern, to receive the signal of described HDMISource device transmission.
Optionally, described method also comprises:
By the hot plug detecting end of HDMI input data line, HDMI input power energy is drawn high to HDMISource equipment, so that HDMISource equipment exports TMDS.
Optionally, the type of described HDMI equipment comprises: HDMISink equipment;
Described determine that the type of described HDMI equipment comprises:
If detecting, the transmission of HDMI input data line has second signal, then determine that described type is HDMISink equipment; Wherein, during described HDMI access HDMISink equipment, triggering described HDMI input data line transmission second signal, the first signal is different from second signal.
Optionally, the described power supply energy passage to HDMI connector carries out the setting corresponding to described type and comprises:
HDMI out-put supply energy is set to a high position, and HDMI input power energy is set to low position.
Optionally, described HDMI out-put supply energy be set to a high position comprise:
Arranging the first switching channel and be in the state of opening, described first switching channel is the switching channel that the power supply energy that control chip exports is converted to HDMI out-put supply energy;
Described HDMI input power energy be set to low position comprise:
Arranging the 2nd switching channel and be in closing condition, described 2nd switching channel is the switching channel of HDMI out-put supply energy transformation to HDMI input power energy.
Optionally, the HDMI transmission path corresponding to described type that the transmodulator of described control HDMI connector controls is in the state of opening and comprises:
Control described transmodulator and HDMI transmission path is switched to HDMI output pattern, with to described HDMISink device transmission signal.
Optionally, described method also comprises:
Received the HPD signal of described HDMISink device transmission by HDMI input data line, and export DP signal to described HDMISink equipment.
The embodiment of the present invention also provides the power supply energy Controlling System of a kind of HDMI connector, comprising: control chip, with the HDMI that described control chip is connected, and the transmodulator being connected with described control chip and described HDMI respectively;
Wherein, described control chip, for when having detected HDMI equipment access to described HDMI, it is determined that the type of described HDMI equipment; The power supply energy passage of HDMI connector is carried out the setting corresponding to described type; After described power supply energy passage is carried out corresponding to described type setting, control the HDMI transmission path corresponding to described type that described transmodulator controls and it is in the state of opening, so that HDMI connector transmits data by described HDMI transmission path.
Based on technique scheme, the power supply energy control method of HDMI connector that the embodiment of the present invention provides comprises: control chip detection to when having HDMI equipment access to the HDMI of HDMI connector, it is determined that the type of described HDMI equipment; The power supply energy passage of HDMI connector is carried out the setting corresponding to described type; After described power supply energy passage is carried out corresponding to described type setting, the HDMI transmission path corresponding to described type that the transmodulator of control HDMI connector controls is in the state of opening, so that HDMI connector transmits data by described HDMI transmission path. Can find out, controlling chip in the embodiment of the present invention can according to the type of the HDMI equipment connected, HDMI transmission path power supply energy passage and transmodulator controlled carries out arrange accordingly, make HDMI connector power supply energy control to HDMI connector residing for operating mode corresponding, ensure that the normal operation of HDMI connector.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The schema of the power supply energy control method of the HDMI connector that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the structural representation of HDMI connector;
Another schema of the power supply energy control method of the HDMI connector that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is another structural representation of HDMI connector;
A schema again of the power supply energy control method of the HDMI connector that Fig. 5 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The schema of the power supply energy control method of the HDMI connector that Fig. 1 provides for the embodiment of the present invention, optionally, method shown in Fig. 1 can based on the structure of HDMI connector shown in Fig. 2, as shown in Figure 2, the structure of HDMI connector can comprise: control chip 1, HDMI 2, transmodulator 3;
Wherein, HDMI 2 is for connecting the interface of HDMI equipment (HDMISource equipment and HDMISink equipment) in HDMI connector;
The state of the HDMI transmission path of HDMI connector can be carried out conversion and control by transmodulator 3;
The HDMI equipment that control chip 1 can connect based on HDMI 2, the state of the power supply energy passage of HDMI connector is set, and HDMI transmission path is carried out conversion and control by control transmodulator 3, thus realize power supply energy control and the Data Transmission Controlling of HDMI connector;
It is connected by HDMI cable between control chip 1 and HDMI 2, it is connected by energy transmission line cable between control chip 1 and transmodulator 3, is connected by energy transmission line cable between transmodulator 3 with HDMI 2; It is connected by HDMI input data line between control chip 1 and resistance R1 and R2.
It should be noted that, the structure of HDMI connector shown in Fig. 2 is only optional structure, and method shown in Fig. 1 can have control chip based on what Fig. 2 disclosed, in the HDMI connector structure of HDMI and transmodulator, but is not limited to structure shown in Fig. 2;
The power supply energy control method of HDMI connector shown in Fig. 1 can be applicable in control chip, the HDMI equipment connected based on HDMI by control chip, power supply energy passage is arranged, and the state of HDMI transmission path is carried out conversion and control by control transmodulator;
With reference to Fig. 1, the power supply energy control method of the HDMI connector that the embodiment of the present invention provides can comprise:
Step S100, when HDMI equipment access being detected to the HDMI of HDMI connector, it is determined that the type of described HDMI equipment;
When HDMI accesses HDMI equipment, HDMI will trigger HDMI cable transmission equipment access signal to control chip, control chip detection is transmitted in transmitting to the HDMI cable being connected with HDMI when having equipment access signal, it may be determined that have HDMI equipment access HDMI;
The type of HDMI equipment comprises: HDMISource equipment and HDMISink equipment; Based on the HDMI device type of HDMI access, signal corresponding to the HDMI device type of access for transmission is given control chip by HDMI input data line, the signal type that control chip transmits by HDMI input data line, it is determined that the type of the HDMI equipment that HDMI currently accesses.
Step S110, power supply energy passage to HDMI connector carry out the setting corresponding to described type;
When HDMI accesses dissimilar HDMI equipment, HDMI connector institute role is different, during such as HDMI access HDMISource equipment, HDMI connector institute role is that the audio frequency sent by HDMISource equipment and signal of video signal are transferred to main frame, during HDMI access HDMISink equipment, HDMI connector institute role is that the audio frequency exported by main frame and signal of video signal are transferred to HDMISink equipment;
Therefore for being adapted to HDMI connector for the HDMI device type institute role accessed, the power supply energy passage that the embodiment of the present invention need to control HDMI connector carries out the setting corresponding to the HDMI device type accessed, thus the corresponding offer of operating mode residing for the power supply energy control that realizes HDMI connector and HDMI connector is possible;
Concrete, control chip can when determining the type of HDMI equipment of access, and the power supply energy passage of control HDMI connector carries out the setting corresponding to described type.
Step S120, after described power supply energy passage is carried out corresponding to described type setting, the HDMI transmission path corresponding to described type that the transmodulator of control HDMI connector controls is in the state of opening, so that HDMI connector transmits data by described HDMI transmission path.
The type that the power supply energy passage of HDMI connector is carried out the HDMI equipment to access corresponding arrange after, the HDMI transmission path corresponding to described type is placed in the state of opening by embodiment of the present invention controls transducer, with the HDMI transmission path transmission data opening state by this, it is achieved the effect of HDMI connector;
When HDMI device type such as access is HDMISource equipment, HDMI transmission path should be switched to HDMI and input pattern, so that the audio frequency that sent by HDMISource equipment of HDMI connector and signal of video signal are transferred to main frame; When HDMI device type such as access is HDMISink equipment, HDMI transmission path should be switched to HDMI and export pattern, so that the audio frequency that exported by main frame of HDMI connector and signal of video signal are transferred to HDMISink equipment.
The power supply energy control method of HDMI connector that the embodiment of the present invention provides comprises: control chip detection to when having HDMI equipment access to the HDMI of HDMI connector, it is determined that the type of described HDMI equipment; The power supply energy passage of HDMI connector is carried out the setting corresponding to described type; After described power supply energy passage is carried out corresponding to described type setting, the HDMI transmission path corresponding to described type that the transmodulator of control HDMI connector controls is in the state of opening, so that HDMI connector transmits data by described HDMI transmission path. Can find out, controlling chip in the embodiment of the present invention can according to the type of the HDMI equipment connected, HDMI transmission path power supply energy passage and transmodulator controlled carries out arrange accordingly, make HDMI connector power supply energy control to HDMI connector residing for operating mode corresponding, ensure that the normal operation of HDMI connector.
In addition, the embodiment of the present invention is after the type of the HDMI equipment of the power supply energy passage to access that arrange HDMI connector is corresponding, control the HDMI transmission path corresponding to described type again and it is in the state of opening, the situation of the anti-tank of power supply energy of HDMI connector can be reduced, improve the working reliability of HDMI connector.
Connect the situation of HDMISource equipment below with HDMI connector, provide the power supply energy control method of HDMI connector to be introduced the embodiment of the present invention.
Optionally, when the embodiment of the present invention can arrange HDMI access HDMISource equipment, triggering HDMI cable transmission equipment access signal, and HDMI input data line transmits the first signal, the first signal is such as high signal;
And then, control chip is detecting that HDMI cable transmission has equipment access signal, and when the transmission of HDMI input data line has the first signal, it may be determined that HDMI has access to HDMI equipment, and the type of HDMI equipment is HDMISource equipment;
Accordingly, when determining HDMI access HDMISource equipment, owing to HDMI connector mainly works to receive audio frequency and the signal of video signal that HDMISource equipment sends, therefore the HDMI out-put supply energy of HDMI connector need to be set to low position by the embodiment of the present invention, HDMI input power energy is set to a high position, so that the effect that the power supply energy of HDMI connector can receive the signal that HDMISource equipment sends to HDMI connector is corresponding;
Corresponding, the HDMI transmission path of HDMI connector need to be switched to HDMI and input pattern by the embodiment of the present invention, to receive the signal of HDMISource device transmission;
Fig. 3 shows another schema of the power supply energy control method of the HDMI connector that the embodiment of the present invention provides, and with reference to Fig. 3, the method can comprise:
Step S200, control chip detection have equipment access signal to HDMI cable transmission, and the transmission of HDMI input data line is when having the first signal, define the HDMI of HDMI equipment access to HDMI connector, and the type of described HDMI equipment is HDMISource equipment;
Wherein, during HDMI access HDMISource equipment, described HDMI cable transmission equipment access signal will be triggered, and HDMI input data line transmits the first signal.
Step S210, HDMI out-put supply energy is set to low position, and HDMI input power energy is set to a high position;
HDMI transmission path is switched to HDMI and inputs pattern by step S220, control transmodulator, to receive the signal of described HDMISource device transmission.
Optionally, the power supply energy passage of HDMI connector can comprise: the first switching channel and the 2nd switching channel; First switching channel is the switching channel that the power supply energy that control chip exports is converted to HDMI out-put supply energy, and the 2nd switching channel is the switching channel of HDMI out-put supply energy transformation to HDMI input power energy;
In the embodiment of the present invention, control chip can arrange the first switching channel and be in closing condition, to realize, HDMI out-put supply energy is set to low position, arranges the 2nd switching channel and be in the state of opening, to realize, HDMI input power energy is set to a high position.
Optionally, HDMI input power energy is also drawn high to HDMISource equipment by the embodiment of the present invention by the hot plug detecting end of HDMI input data line, TMDS (TransitionMinimizedDifferentialSignaling filters modulation difference signal) is exported to realize HDMISource equipment.
Optionally, Fig. 4 shows the structure of another of HDMI connector, in Fig. 4, HDMI_CABLE_DET is HDMI cable, HDMIOUT_PWR_EN is HDMI energy output cable, and HDMIIN_PWR_EN is HDMI energy input cable, and HDMIIN_DET is HDMI input data line; It is connected by energy transmission cable between transmodulator with HDMI; In Fig. 4, the electric channel that+5V_S0 is converted to+5V_HDMI can think the first switching channel, and the electric channel that+5V_HDMI is converted to+5V_HDMI_IN can think the 2nd switching channel.
Composition graphs 4, under HDMI connector being accessed HDMISource equipment situation below, optional power supply energy control process is introduced:
When HDMI accesses HDMISource equipment, control chip detects equipment access signal by HDMI_CABLE_DET, it is determined that have HDMI equipment access; And then control chip can detect that HDMIIN_DET is in a high position, transmission be high signal, therefore determine access HDMI equipment be HDMISource equipment;
Control chip arranges the electric channel closedown that+5V_S0 is converted to+5V_HDMI, is set to low position by HDMIOUT_PWR_EN; And the electric channel that+5V_HDMI is converted to+5V_HDMI_IN is set and opens, namely HDMIIN_PWR_EN is set to a high position, the 5V energy that+5V_HDMI_IN will have source end to come like this;
Then, the HDMI transmission path that transmodulator is controlled by control chip is switched to HDMIINchannel (HDMI inputs pattern), notify that main frame enters monitormode (display format), so that the audio frequency that sent by HDMISource equipment of HDMI connector and signal of video signal are transferred to main frame simultaneously;
Meanwhile, HDMI_IN_HPD (the hot plug detecting end of HDMI input data line) will be drawn high HDMISource equipment by+5V_HDMI_IN, so that HDMISource equipment exports TMDS signal; HPD represents HotPlugDetection, is hot plug detection.
Connect the situation of HDMISink equipment below with HDMI connector, provide the power supply energy control method of HDMI connector to be introduced the embodiment of the present invention.
Optionally, when the invention process can arrange HDMI access HDMISink equipment, trigger the equipment access signal of HDMI cable transmission, and HDMI input data line transmission second signal, second signal is different from the first signal, if second signal is low position signal;
And then, control chip is detecting that HDMI cable transmission has equipment access signal, and when the transmission of HDMI input data line has a second signal, it may be determined that HDMI has access to HDMI equipment, and the type of HDMI equipment is HDMISink equipment;
Accordingly, when determining HDMI access HDMISink equipment, owing to HDMI connector mainly plays a part the Signal transmissions of main frame output to HDMISink equipment, therefore the HDMI out-put supply energy of HDMI connector need to be set to a high position by the embodiment of the present invention, HDMI input power energy is set to low position, so that the power supply energy of HDMI connector can be corresponding to the effect that HDMI connector sends signal to HDMISink equipment;
Corresponding, the HDMI transmission path of HDMI connector need to be switched to HDMI and export pattern by the embodiment of the present invention, to send signal to HDMISink equipment;
Fig. 5 shows a schema again of the power supply energy control method of the HDMI connector that the embodiment of the present invention provides, and with reference to Fig. 5, the method can comprise:
Step S300, control chip detection have equipment access signal to HDMI cable transmission, and the transmission of HDMI input data line is when having a second signal, define the HDMI of HDMI equipment access to HDMI connector, and the type of described HDMI equipment is HDMISink equipment;
Wherein, during HDMI access HDMISink equipment, described HDMI cable transmission equipment access signal will be triggered, and HDMI input data line transmission second signal.
Step S310, HDMI out-put supply energy is set to a high position, and HDMI input power energy is set to low position;
HDMI transmission path is switched to HDMI and exports pattern by step S320, control transmodulator, with to described HDMISink device transmission signal.
Optionally, in embodiments of the present invention, control chip can arrange the first switching channel and be in the state of opening, and to realize, HDMI out-put supply energy is set to a high position, arranges the 2nd switching channel and be in closing condition, to realize, HDMI input power energy is set to low position.
Optionally, the embodiment of the present invention also receives the HPD signal of described HDMISink device transmission by HDMI input data line, and exports DP (DisplayPort, display interface) signal to described HDMISink equipment.
Composition graphs 4, under HDMI connector being accessed HDMISink equipment situation below, optional power supply energy control process is introduced:
When HDMI accesses HDMISink equipment, control chip detects equipment access signal by HDMI_CABLE_DET, it is determined that have HDMI equipment access; And control chip can detect that HDMIIN_DET is in low position, transmission be low position signal, therefore determine access HDMI equipment be HDMISink equipment;
The electric channel that control chip setting+5V_S0 is converted to+5V_HDMI is opened, and is set to a high position by HDMIOUT_PWR_EN; And the electric channel closedown that+5V_HDMI is converted to+5V_HDMI_IN is set, namely HDMIIN_PWR_EN is set to low position, and+5V_HDMI will have the energy output of the 5V_S0 of MB end to Sink end like this;
Then, the HDMI transmission path that transmodulator is controlled by control chip is switched to HDMI and exports pattern, opens as DPout in HDMI transmission path is switched to the passage of HDMIout;
Meanwhile, HDMI input data line will receive the HPD signal of HDMISink device transmission, and exports DP signal to described HDMISink equipment.
Optionally, the control chip that the embodiment of the present invention provides can be ECIO chip.
The power supply energy control method of the HDMI connector that the embodiment of the present invention provides, the type of the HDMI equipment that can connect according to HDMI connector, HDMI transmission path power supply energy passage and transmodulator controlled carries out arrange accordingly, make HDMI connector power supply energy control to HDMI connector residing for operating mode corresponding, ensure that the normal operation of HDMI connector.
The embodiment of the present invention also provides the power supply energy Controlling System of a kind of HDMI connector, the structure of this system can with the similar of HDMI connector shown in Fig. 2, composition graphs 2, this system can comprise:
Control chip 1, with the HDMI 2 that described control chip is connected, the transmodulator 3 being connected with described control chip and described HDMI respectively;
Wherein, control chip, for when having detected HDMI equipment access to HDMI, it is determined that the type of described HDMI equipment; The power supply energy passage of HDMI connector is carried out the setting corresponding to described type; After described power supply energy passage carries out corresponding to described type setting, the HDMI transmission path corresponding to described type that control transmodulator controls is in the state of opening, so that HDMI connector is by described HDMI transmission path transmission data.
Optionally, HDMI, when accessing HDMI equipment, can trigger HDMI cable transmission equipment access signal, so that when control chip detection has equipment access signal to the transmission of described HDMI cable, it is determined that there is HDMI equipment access HDMI;
Optionally, when HDMI accesses HDMISource equipment, except triggering HDMI cable transmission equipment access signal, also can trigger HDMI input data line and transmit the first signal (such as high signal);
Optionally, control chip is being determined to detect that the transmission of described HDMI cable has equipment access signal, and the transmission of described HDMI input data line is when having the first signal, HDMISource equipment access HDMI can be determined, thus can be specifically for, HDMI out-put supply energy is set to low position, HDMI input power energy is set to a high position, and control described transmodulator and HDMI transmission path is switched to HDMI input pattern, to receive the signal of described HDMISource device transmission.
Optionally, the first switching channel is in closing condition by arranging to control chip, it is achieved HDMI out-put supply energy is set to low position, arranges the 2nd switching channel and be in the state of opening, it is achieved the power supply energy that HDMI inputs is set to a high position; Wherein, described first switching channel is the switching channel that the power supply energy that control chip exports is converted to HDMI out-put supply energy, and described 2nd switching channel is the switching channel of HDMI out-put supply energy transformation to HDMI input power energy.
Optionally, when HDMI accesses HDMISink equipment, except triggering HDMI cable transmission equipment access signal, also can trigger HDMI input data line transmission second signal (such as low position signal).
Optionally, control chip is being determined to detect that the transmission of described HDMI cable has equipment access signal, and the transmission of described HDMI input data line is when having a second signal, HDMISink equipment access HDMI can be determined, thus can be specifically for, HDMI out-put supply energy is set to a high position, HDMI input power energy is set to low position, and control described transmodulator and HDMI transmission path is switched to HDMI output pattern, with to described HDMISink device transmission signal.
Optionally, the first switching channel is in the state of opening by arranging to control chip, it is achieved HDMI out-put supply energy is set to a high position, arranges the 2nd switching channel and be in closing condition, it is achieved HDMI input power energy is set to low position.
The power supply energy Controlling System of the HDMI connector that the embodiment of the present invention provides, the type of the HDMI equipment that can connect according to HDMI connector, HDMI transmission path power supply energy passage and transmodulator controlled carries out arrange accordingly, make HDMI connector power supply energy control to HDMI connector residing for operating mode corresponding, ensure that the normal operation of HDMI connector.
In this specification sheets, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment emphasis illustrated is the difference with other embodiments, between each embodiment identical similar portion mutually see. For device disclosed in embodiment, owing to it corresponds to the method disclosed in Example, so what describe is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, the unit of each example described in conjunction with embodiment disclosed herein and algorithm steps, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeableness of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function. These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme. Each specifically can should be used for using different methods to realize described function by professional and technical personnel, but this kind realizes should not thinking the scope exceeding the present invention.
The method described in conjunction with embodiment disclosed herein or the step of algorithm can direct hardware, treater execution software module, or the combination of the two implements. Software module can be placed in the storage media of other form any known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are enable to realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention can not be limited in these embodiments shown in this article, but be met the widest scope consistent with principle disclosed herein and features of novelty.
Claims (13)
1. the power supply energy control method of a HDMI connector, it is characterised in that, comprising:
Control chip detection is to when having HDMI equipment access to the HDMI of HDMI connector, it is determined that the type of described HDMI equipment;
The power supply energy passage of HDMI connector is carried out the setting corresponding to described type;
After described power supply energy passage is carried out corresponding to described type setting, the HDMI transmission path corresponding to described type that the transmodulator of control HDMI connector controls is in the state of opening, so that HDMI connector transmits data by described HDMI transmission path.
2. the power supply energy control method of HDMI connector according to claim 1, it is characterised in that, described control chip detection comprises to the HDMI having HDMI equipment access to HDMI connector:
When detecting that HDMI cable transmission has equipment access signal, it is determined that have HDMI equipment access HDMI; Wherein, during described HDMI access HDMI equipment, trigger described HDMI cable transmission equipment access signal.
3. the power supply energy control method of HDMI connector according to claim 2, it is characterised in that, the type of described HDMI equipment comprises: HDMISource equipment;
Described determine that the type of described HDMI equipment comprises:
If detecting, the transmission of HDMI input data line has the first signal, then determine that described type is HDMISource equipment; Wherein, during described HDMI access HDMISource equipment, trigger described HDMI input data line and transmit the first signal.
4. the power supply energy control method of HDMI connector according to claim 3, it is characterised in that, the described power supply energy passage to HDMI connector carries out the setting corresponding to described type and comprises:
HDMI out-put supply energy is set to low position, and HDMI input power energy is set to a high position.
5. the power supply energy control method of HDMI connector according to claim 4, it is characterised in that, described HDMI out-put supply energy is set to low position comprises:
Arranging the first switching channel and be in closing condition, described first switching channel is the switching channel that the power supply energy that control chip exports is converted to HDMI out-put supply energy;
The described power supply energy by HDMI input is set to a high position and comprises:
Arranging the 2nd switching channel and be in the state of opening, described 2nd switching channel is the switching channel of HDMI out-put supply energy transformation to HDMI input power energy.
6. the power supply energy control method of HDMI connector according to claim 4 or 5, it is characterised in that, the HDMI transmission path corresponding to described type that the transmodulator of described control HDMI connector controls is in the state of opening and comprises:
Control described transmodulator and HDMI transmission path is switched to HDMI input pattern, to receive the signal of described HDMISource device transmission.
7. the power supply energy control method of HDMI connector according to claim 6, it is characterised in that, also comprise:
By the hot plug detecting end of HDMI input data line, HDMI input power energy is drawn high to HDMISource equipment, so that HDMISource equipment exports filters modulation difference signal TMDS.
8. the power supply energy control method of HDMI connector according to claim 2, it is characterised in that, the type of described HDMI equipment comprises: HDMISink equipment;
Described determine that the type of described HDMI equipment comprises:
If detecting, the transmission of HDMI input data line has second signal, then determine that described type is HDMISink equipment; Wherein, during described HDMI access HDMISink equipment, triggering described HDMI input data line transmission second signal, the first signal is different from second signal.
9. the power supply energy control method of HDMI connector according to claim 8, it is characterised in that, the described power supply energy passage to HDMI connector carries out the setting corresponding to described type and comprises:
HDMI out-put supply energy is set to a high position, and HDMI input power energy is set to low position.
10. the power supply energy control method of HDMI connector according to claim 9, it is characterised in that, described HDMI out-put supply energy is set to a high position comprises:
Arranging the first switching channel and be in the state of opening, described first switching channel is the switching channel that the power supply energy that control chip exports is converted to HDMI out-put supply energy;
Described HDMI input power energy be set to low position comprise:
Arranging the 2nd switching channel and be in closing condition, described 2nd switching channel is the switching channel of HDMI out-put supply energy transformation to HDMI input power energy.
The power supply energy control method of 11. HDMI connector according to claim 9 or 10, it is characterised in that, the HDMI transmission path corresponding to described type that the transmodulator of described control HDMI connector controls is in the state of opening and comprises:
Control described transmodulator and HDMI transmission path is switched to HDMI output pattern, with to described HDMISink device transmission signal.
The power supply energy control method of 12. HDMI connector according to claim 11, it is characterised in that, also comprise:
The hot plug detection HPD signal of described HDMISink device transmission is received, and output display interface DP signal is to described HDMISink equipment by HDMI input data line.
The power supply energy Controlling System of 13. 1 kinds of HDMI connector, it is characterised in that, comprising: control chip, with the HDMI that described control chip is connected, the transmodulator being connected with described control chip and described HDMI respectively;
Wherein, described control chip, for when having detected HDMI equipment access to described HDMI, it is determined that the type of described HDMI equipment; The power supply energy passage of HDMI connector is carried out the setting corresponding to described type; After described power supply energy passage is carried out corresponding to described type setting, control the HDMI transmission path corresponding to described type that described transmodulator controls and it is in the state of opening, so that HDMI connector transmits data by described HDMI transmission path.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111478127A (en) * | 2020-04-17 | 2020-07-31 | 中国科学院地质与地球物理研究所 | Signal processing circuit, contactless connector, signal processing method, and storage medium |
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| CN103293969A (en) * | 2012-03-05 | 2013-09-11 | 联发科技股份有限公司 | Control chip |
| CN104103924A (en) * | 2013-04-02 | 2014-10-15 | 华为终端有限公司 | High definition multimedia interface hdmi interface unit and multimedia terminal |
| US20150067195A1 (en) * | 2013-08-30 | 2015-03-05 | Manish Sharma | Hdmi source and sink device over single hdmi connector |
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| CN103293969A (en) * | 2012-03-05 | 2013-09-11 | 联发科技股份有限公司 | Control chip |
| CN104103924A (en) * | 2013-04-02 | 2014-10-15 | 华为终端有限公司 | High definition multimedia interface hdmi interface unit and multimedia terminal |
| US20150067195A1 (en) * | 2013-08-30 | 2015-03-05 | Manish Sharma | Hdmi source and sink device over single hdmi connector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111478127A (en) * | 2020-04-17 | 2020-07-31 | 中国科学院地质与地球物理研究所 | Signal processing circuit, contactless connector, signal processing method, and storage medium |
| US11843204B2 (en) | 2020-04-17 | 2023-12-12 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Signal processing circuit, contactless connector, signal processing method and storage medium |
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| CN105655838B (en) | 2018-12-14 |
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