CN105655838B - A kind of the power supply energy control method and system of HDMI connector - Google Patents
A kind of the power supply energy control method and system of HDMI connector Download PDFInfo
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- CN105655838B CN105655838B CN201511001233.4A CN201511001233A CN105655838B CN 105655838 B CN105655838 B CN 105655838B CN 201511001233 A CN201511001233 A CN 201511001233A CN 105655838 B CN105655838 B CN 105655838B
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- hdmi
- supply energy
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- power supply
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Classifications
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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
-
- 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
-
- 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
Abstract
The embodiment of the present invention provides the power supply energy control method and system of a kind of HDMI connector and determines the type of the HDMI equipment when method includes: that control chip detects that HDMI equipment is linked into the HDMI interface of HDMI connector；Be arranged corresponding with the type is carried out to the power supply energy channel of HDMI connector；After carrying out setting corresponding with the type to the power supply energy channel, the HDMI transmission channel corresponding with the type that the converter of control HDMI connector is controlled is in the open state, so that HDMI connector transmits data by the HDMI transmission channel.It is corresponding to operating mode locating for HDMI connector that the embodiment of the present invention may make that the power supply energy of HDMI connector is controlled, and ensure that the normal work of HDMI connector.
Description
Technical field
The present invention relates to power control techniques fields, and in particular to a kind of HDMI (High Definition
Multimedia Interface, high-definition multimedia interface) connector power supply energy control method and system.
Background technique
HDMI interface is a kind of tailored version digital interface of suitable image transmission, can transmit audio and image letter simultaneously
Number, HDMI interface mainly has HDMI IN interface (HDMI input interface) and HDMI OUT interface (HDMI output interface)；With
The development of AIO (All In One, integration) technology, can combine the HDMI combo (connection of HDMI IN interface and HDMI interface
Device) it comes into being.
HDMI connector is mainly connected between host and HDMI equipment, transmits audio between host and HDMI equipment
And video signal；For HDMI connector there are mainly two types of operating mode, one kind is that HDMI connector connects HDMI Source equipment
When (sending device), the audio and video signal that HDMI Source equipment is sent can be transferred to host, thus real on host
The broadcasting of existing audio and video signal can be by host when another HDMI connector connects HDMI Sink equipment (receiving device)
The audio and video signal of output are transferred to HDMI Sink equipment.
When HDMI connector is in different operating modes, the control mode of the power supply energy of HDMI connector also it is each not
It is identical, it is necessary to so that the power supply energy control of HDMI connector is corresponding to operating mode locating for HDMI connector, it otherwise will be right
The normal work of HDMI connector brings extreme influence；For example, when HDMI connector connects HDMI Sink equipment, if main
Machine is inserted into the HDMI IN cable of HDMI connector before being not powered on, then the power supply energy of HDMI connector can anti-tank give
Host, so that host reads data and exception occurs, as host passes through SMBus bus (System Management Bus, system
Manage bus) read EDID (Extended Display Identification Data, extending display identification data) data
There is exception etc., causes HDMI connector to occur to HDMI Sink equipment transmission data abnormal；
As it can be seen that the operating mode different for HDMI connector, carries out corresponding essence to the power supply energy of HDMI connector
Quasi- control guarantees HDMI connection so that the power supply energy control of HDMI connector is corresponding to operating mode locating for HDMI connector
The normal work of device becomes those skilled in the art's problem in need of consideration.
Summary of the invention
In view of this, the embodiment of the present invention provides the power supply energy control method and system of a kind of HDMI connector, so that
The power supply energy control for obtaining HDMI connector is corresponding to operating mode locating for HDMI connector, guarantees the normal work of HDMI connector
Make.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
A kind of power supply energy control method of HDMI connector, comprising:
When control chip detects that HDMI equipment is linked into the HDMI interface of HDMI connector, the HDMI equipment is determined
Type；
Be arranged corresponding with the type is carried out to the power supply energy channel of HDMI connector；
After carrying out setting corresponding with the type to the power supply energy channel, the converter of HDMI connector is controlled
The HDMI transmission channel corresponding with the type controlled is in the open state, so that HDMI connector passes through the HDMI
Transmission channel transmits data.
Optionally, the control chip detects that HDMI equipment is linked into the HDMI interface of HDMI connector and includes:
When detecting that HDMI cable transmission has equipment to access signal, determining has HDMI equipment to access HDMI interface；Wherein,
When the HDMI interface access HDMI equipment, the HDMI cable transmission device access signal is triggered.
Optionally, the type of the HDMI equipment includes: HDMI Source equipment；
The type of the determination HDMI equipment includes:
If detecting, the transmission of HDMI input data line has the first signal, it is determined that the type is HDMI Source equipment；
Wherein, it when the HDMI interface access HDMI Source equipment, triggers the HDMI input data line and transmits the first signal.
Optionally, be arranged corresponding with the type of power supply energy channel progress to HDMI connector includes:
HDMI out-put supply energy is set to low level, and HDMI input power energy is set to a high position.
Optionally, described HDMI out-put supply energy is set to low level to include:
The first ALT-CH alternate channel is arranged to be in close state, first ALT-CH alternate channel is the power supply energy for controlling chip output
It converts to the ALT-CH alternate channel of HDMI out-put supply energy；
The power supply energy by HDMI input is set to a high position and includes:
It is in the open state that second ALT-CH alternate channel is set, second ALT-CH alternate channel be HDMI out-put supply energy convert to
The ALT-CH alternate channel of HDMI input power energy.
Optionally, the HDMI transmission channel corresponding with the type that the converter of the control HDMI connector is controlled
It is in the open state to include:
It controls the converter and HDMI transmission channel is switched to HDMI input pattern, to receive the HDMI Source
The signal of equipment transmission.
Optionally, the method also includes:
HDMI input power energy is drawn high to HDMI Source by the hot plug test side of HDMI input data line and is set
It is standby, so that HDMI Source equipment exports TMDS.
Optionally, the type of the HDMI equipment includes: HDMI Sink equipment；
The type of the determination HDMI equipment includes:
If detecting, the transmission of HDMI input data line has second signal, it is determined that the type is HDMI Sink equipment；Its
In, when the HDMI interface accesses HDMI Sink equipment, trigger the HDMI input data line transmission second signal, the first letter
It is number different from second signal.
Optionally, be arranged corresponding with the type of power supply energy channel progress to HDMI connector includes:
HDMI out-put supply energy is set to a high position, and HDMI input power energy is set to low level.
Optionally, described HDMI out-put supply energy is set to a high position to include:
It is arranged that the first ALT-CH alternate channel is in the open state, first ALT-CH alternate channel is the power supply energy for controlling chip output
It converts to the ALT-CH alternate channel of HDMI out-put supply energy；
It is described HDMI input power energy is set to low level to include:
The second ALT-CH alternate channel is arranged to be in close state, second ALT-CH alternate channel be HDMI out-put supply energy convert to
The ALT-CH alternate channel of HDMI input power energy.
Optionally, the HDMI transmission channel corresponding with the type that the converter of the control HDMI connector is controlled
It is in the open state to include:
It controls the converter and HDMI transmission channel is switched to HDMI output mode, with to the HDMI Sink equipment
Transmit signal.
Optionally, the method also includes:
The HPD signal of the HDMI Sink equipment transmission is received by HDMI input data line, and exports DP signal to institute
State HDMI Sink equipment.
The embodiment of the present invention also provides a kind of power supply energy control system of HDMI connector, comprising: control chip, with institute
State the HDMI interface of control chip connection, the converter connecting respectively with the control chip and the HDMI interface；
Wherein, the control chip, described in determining when having detected that HDMI equipment is linked into the HDMI interface
The type of HDMI equipment；Be arranged corresponding with the type is carried out to the power supply energy channel of HDMI connector；To the electricity
Source energy channel carry out it is corresponding with the type be arranged after, control the converter controlled it is corresponding with the type
HDMI transmission channel is in the open state, so that HDMI connector transmits data by the HDMI transmission channel.
Based on the above-mentioned technical proposal, the power supply energy control method of HDMI connector provided in an embodiment of the present invention includes:
When control chip detects that HDMI equipment is linked into the HDMI interface of HDMI connector, the type of the HDMI equipment is determined；
Be arranged corresponding with the type is carried out to the power supply energy channel of HDMI connector；To the power supply energy channel carry out with
After the type is arranged accordingly, it is logical to control HDMI corresponding with the type transmission that the converter of HDMI connector is controlled
Road is in the open state, so that HDMI connector transmits data by the HDMI transmission channel.As can be seen that the present invention is real
Apply in example control chip can be according to the type of the HDMI equipment connected, the HDMI that power supply energy channel and converter are controlled
Transmission channel is accordingly arranged, so that the power supply energy control of HDMI connector and operating mode phase locating for HDMI connector
It answers, ensure that the normal work of HDMI connector.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow chart of the power supply energy control method of HDMI connector provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of HDMI connector；
Fig. 3 is another flow chart of the power supply energy control method of HDMI connector provided in an embodiment of the present invention；
Fig. 4 is another structural schematic diagram of HDMI connector；
Fig. 5 is another flow chart of the power supply energy control method of HDMI connector provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart of the power supply energy control method of HDMI connector provided in an embodiment of the present invention, optionally, figure
Method shown in 1 can be based on the structure of HDMI connector shown in Fig. 2, as shown in Fig. 2, the structure of HDMI connector may include: control
Coremaking piece 1, HDMI interface 2, converter 3；
Wherein, HDMI interface 2 is in HDMI connector for connecting HDMI equipment (HDMI Source equipment and HDMI
Sink equipment) interface；
Converter 3 can the state of HDMI transmission channel to HDMI connector carry out conversion and control；
The power supply energy channel of HDMI connector can be arranged based on the HDMI equipment that HDMI interface 2 is connected in control chip 1
State, and control converter 3 to HDMI transmission channel carry out conversion and control, to realize the power supply energy control of HDMI connector
System and Data Transmission Controlling；
It can be connected by HDMI cable between control chip 1 and HDMI interface 2, controlling can lead between chip 1 and converter 3
The connection of energy transmission cable is crossed, can be connected by energy transmission cable between converter 3 and HDMI interface 2；Control chip 1 and electricity
It can be connected by HDMI input data line between resistance R1 and R2.
It should be noted that the structure of HDMI connector shown in Fig. 2 is only alternative construction, method shown in Fig. 1 can be based on Fig. 2
Having for disclosing controls chip, in the HDMI connector structure of HDMI interface and converter, 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 applied in control chip, is based on by control chip
The HDMI equipment that HDMI interface is connected, is configured power supply energy channel, and control converter is to HDMI transmission channel
State carries out conversion and control；
Referring to Fig.1, the power supply energy control method of HDMI connector provided in an embodiment of the present invention may include:
Step S100, when detecting that HDMI equipment is linked into the HDMI interface of HDMI connector, determine that the HDMI is set
Standby type；
When HDMI interface accesses HDMI equipment, HDMI interface will trigger HDMI cable transmission device access signal to control
Chip, when control chip detects that transmission has equipment to access signal in the HDMI cable connecting with HDMI interface transmission, it may be determined that
There is HDMI equipment to access HDMI interface；
The type of HDMI equipment includes: HDMI Source equipment and HDMI Sink equipment；Based on HDMI interface access
HDMI device type, HDMI input data line will transmit signal corresponding with the HDMI device type of access and give control chip, control
The signal type that coremaking piece can be transmitted by HDMI input data line determines the class for the HDMI equipment that HDMI interface is currently accessed
Type.
Step S110, be arranged corresponding with the type is carried out to the power supply energy channel of HDMI connector；
When HDMI interface accesses different types of HDMI equipment, HDMI connector role is different, such as HDMI interface
When accessing HDMI Source equipment, HDMI connector role is the audio for sending HDMI Source equipment and image
Signal is transferred to host, and when HDMI interface accesses HDMI Sink equipment, HDMI connector role is to export host
Audio and video signal are transferred to HDMI Sink equipment；
Therefore accessed HDMI device type role, the embodiment of the present invention are directed to be adapted to HDMI connector
Need to control HDMI connector power supply energy channel carry out it is corresponding with the HDMI device type accessed be arranged, thus for realization
The power supply energy control of HDMI connector is corresponding to operating mode locating for HDMI connector to provide possibility；
Specifically, control chip can control the power supply energy of HDMI connector when determining the type of HDMI equipment of access
Amount channel carries out be arranged corresponding with the type.
Step S120, after carrying out setting corresponding with the type to the power supply energy channel, HDMI connection is controlled
The HDMI transmission channel corresponding with the type that the converter of device is controlled is in the open state, so that HDMI connector is logical
Cross the HDMI transmission channel transmission data.
After the power supply energy channel to HDMI connector carries out setting corresponding with the type of HDMI equipment of access, this
HDMI transmission channel corresponding with the type is placed in opening state by inventive embodiments controls transducer, to pass through the opening
The HDMI transmission channel of state transmits data, realizes the effect of HDMI connector；
As access HDMI device type be HDMI Source equipment when, HDMI transmission channel should be switched to HDMI input
Mode, so that the audio that HDMI Source equipment is sent and video signal are transferred to host by HDMI connector；Such as access
When HDMI device type is HDMI Sink equipment, HDMI transmission channel should be switched to HDMI output mode, so as to HDMI connector
The audio of host output and video signal are transferred to HDMI Sink equipment.
The power supply energy control method of HDMI connector provided in an embodiment of the present invention includes: that control chip has detected
When HDMI equipment is linked into the HDMI interface of HDMI connector, the type of the HDMI equipment is determined；To the electricity of HDMI connector
Source energy channel carries out be arranged corresponding with the type；Set corresponding with the type is being carried out to the power supply energy channel
It postpones, it is in the open state to control the HDMI transmission channel corresponding with the type that the converter of HDMI connector is controlled,
So that HDMI connector transmits data by the HDMI transmission channel.As can be seen that controlling chip in the embodiment of the present invention
Phase can be carried out according to the type of the HDMI equipment connected, the HDMI transmission channel controlled power supply energy channel and converter
It should be arranged, so that the power supply energy control of HDMI connector is corresponding to operating mode locating for HDMI connector, ensure that HDMI connects
Connect the normal work of device.
In addition, type of the embodiment of the present invention in the power supply energy channel of setting HDMI connector and the HDMI equipment of access
After corresponding, then to control HDMI transmission channel corresponding with the type in the open state, can reduce the power supply of HDMI connector
The case where energy anti-tank, improve the functional reliability of HDMI connector.
The case where connecting HDMI Source equipment below with HDMI connector provides HDMI connection to the embodiment of the present invention
The power supply energy control method of device is introduced.
Optionally, when the settable HDMI interface of the embodiment of the present invention accesses HDMI Source equipment, triggering HDMI cable is passed
Transfer device accesses signal, and HDMI input data line transmits the first signal, the first signal such as high signal；
In turn, control chip detect HDMI cable transmission have equipment access signal, and HDMI input data line transmit
When having the first signal, it may be determined that HDMI interface access has HDMI equipment, and the type of HDMI equipment is HDMI Source equipment；
Correspondingly, when determining that HDMI interface accesses HDMI Source equipment, since HDMI connector has been mainly to receive
The effect of audio and video signal that HDMI Source equipment is sent, therefore the embodiment of the present invention need to be by HDMI connector
HDMI out-put supply energy is set to low level, HDMI input power energy is set to a high position, so that the power supply of HDMI connector
It is corresponding that energy can receive the effect of signal that HDMI Source equipment is sent to HDMI connector；
Corresponding, the HDMI transmission channel of HDMI connector need to be switched to HDMI input pattern by the embodiment of the present invention, with
Just the signal of HDMI Source equipment transmission is received；
Fig. 3 shows another flow chart of the power supply energy control method of HDMI connector provided in an embodiment of the present invention,
Referring to Fig. 3, this method may include:
Step S200, control chip detects that HDMI cable transmission has equipment to access signal, and HDMI input data line passes
It is defeated when having the first signal, determine the HDMI interface for thering is HDMI equipment to be linked into HDMI connector, and the type of the HDMI equipment
For HDMI Source equipment；
Wherein, when HDMI interface access HDMI Source equipment, the HDMI cable transmission device access letter will be triggered
Number, and HDMI input data line transmits the first signal.
Step S210, HDMI out-put supply energy is set to low level, and HDMI input power energy is set to a high position；
Step S220, HDMI transmission channel is switched to HDMI input pattern by control converter, to receive the HDMI
The signal of Source equipment transmission.
Optionally, the power supply energy channel of HDMI connector may include: the first ALT-CH alternate channel and the second ALT-CH alternate channel；The
One ALT-CH alternate channel is to control the power supply energy that chip exports to convert to the ALT-CH alternate channel of HDMI out-put supply energy, and the second conversion is logical
Road is that HDMI out-put supply energy is converted to the ALT-CH alternate channel of HDMI input power energy；
In the embodiment of the present invention, control settable first ALT-CH alternate channel of chip is in close state, to realize that HDMI is defeated
Power supply energy is set to low level out, and the second ALT-CH alternate channel of setting is in the open state, is set to HDMI input power energy with realizing
It is high-order.
Optionally, the embodiment of the present invention can also be by the hot plug test side of HDMI input data line by HDMI input power
Energy is drawn high to HDMI Source equipment, to realize that HDMI Source equipment exports TMDS (Transition Minimized
Differential Signaling, filtering modulation differential signal).
Optionally, Fig. 4 shows another structure of HDMI connector, and in Fig. 4, HDMI_CABLE_DET is HDMI wire
Cable, HDMIOUT_PWR_EN are HDMI energy output cable, and HDMIIN_PWR_EN is HDMI energy input cable, HDMIIN_
DET is HDMI input data line；Pass through energy transmission cable connection between converter and HDMI interface；In Fig. 4 ,+5V_S0 conversion
Electric channel to+5V_HDMI may be considered the first ALT-CH alternate channel, and+5V_HDMI converts the electric channel to+5V_HDMI_IN can
To be considered the second ALT-CH alternate channel.
In conjunction with Fig. 4, in the case of accessing HDMI Source equipment to HDMI connector below, optional power supply energy control
Process is introduced:
When HDMI interface accesses HDMI Source equipment, control chip can be detected by HDMI_CABLE_DET to be set
Standby access signal, determining has the access of HDMI equipment；And then control chip and HDMIIN_DET can be detected in a high position, transmission is
High signal, it is thus determined that the HDMI equipment of access is HDMI Source equipment；
Control chip setting+5V_S0 is converted to the electric channel closing of+5V_HDMI, i.e., is set to HDMIOUT_PWR_EN low
Position；And+5V_HDMI is set and is converted to the electric channel opening of+5V_HDMI_IN, i.e. HDMIIN_PWR_EN is set to a high position, in this way+
The 5V energy that 5V_HDMI_IN will have the end source to come；
Then, the HDMI transmission channel that converter is controlled is switched to HDMI IN channel (HDMI is defeated by control chip
Enter mode), while host being notified to enter monitor mode (display pattern), so that HDMI connector is by HDMI Source
The audio and video signal that equipment is sent are transferred to host；
Meanwhile HDMI_IN_HPD (the hot plug test side of HDMI input data line) will be drawn high by+5V_HDMI_IN to
HDMI Source equipment, so that HDMI Source equipment exports TMDS signal；HPD indicates Hot Plug Detection,
For hot plug detection.
The case where connecting HDMI Sink equipment below with HDMI connector provides HDMI connector to the embodiment of the present invention
Power supply energy control method be introduced.
Optionally, when the present invention implements settable HDMI interface access HDMI Sink equipment, triggering HDMI cable transmission
Equipment accesses signal, and HDMI input data line transmits second signal, and second signal is different from the first signal, as second signal is
Low level signal；
In turn, control chip detect HDMI cable transmission have equipment access signal, and HDMI input data line transmit
When having second signal, it may be determined that HDMI interface access has HDMI equipment, and the type of HDMI equipment is HDMI Sink equipment；
Correspondingly, when determining that HDMI interface accesses HDMI Sink equipment, since HDMI connector has been mainly by host
The signal of output is transferred to the effect of HDMI Sink equipment, therefore the embodiment of the present invention need to export the HDMI of HDMI connector
Power supply energy is set to a high position, HDMI input power energy is set to low level, so that the power supply energy of HDMI connector can
It is corresponding to the transmission effect of signal of HDMI Sink equipment to HDMI connector；
Corresponding, the HDMI transmission channel of HDMI connector need to be switched to HDMI output mode by the embodiment of the present invention, with
Just signal is sent to HDMI Sink equipment；
Fig. 5 shows another flow chart of the power supply energy control method of HDMI connector provided in an embodiment of the present invention,
Referring to Fig. 5, this method may include:
Step S300, control chip detects that HDMI cable transmission has equipment to access signal, and HDMI input data line passes
It is defeated when having second signal, determine the HDMI interface for thering is HDMI equipment to be linked into HDMI connector, and the type of the HDMI equipment
For HDMI Sink equipment；
Wherein, when HDMI interface access HDMI Sink equipment, the HDMI cable transmission device access signal will be triggered,
And HDMI input data line transmits second signal.
Step S310, HDMI out-put supply energy is set to a high position, and HDMI input power energy is set to low level；
Step S320, HDMI transmission channel is switched to HDMI output mode by control converter, with to the HDMI Sink
Device transmission signal.
Optionally, in embodiments of the present invention, control settable first ALT-CH alternate channel of chip is in the open state, to realize
HDMI out-put supply energy is set to a high position, the second ALT-CH alternate channel of setting is in close state, to realize HDMI input power
Energy is set to low level.
Optionally, the embodiment of the present invention can also receive the HDMI Sink equipment transmission by HDMI input data line
HPD signal, and DP (Display Port, display interface) signal is exported to the HDMI Sink equipment.
In conjunction with Fig. 4, in the case of accessing HDMI Sink equipment to HDMI connector below, optional power supply energy was controlled
Journey is introduced:
When HDMI interface accesses HDMI Sink equipment, control chip can detect equipment by HDMI_CABLE_DET
Signal is accessed, determining has the access of HDMI equipment；And control chip can be detected HDMIIN_DET and be in low level, transmission is low level
Signal, it is thus determined that the HDMI equipment of access is HDMI Sink equipment；
Control chip setting+5V_S0 is converted to the electric channel opening of+5V_HDMI, i.e., HDMIOUT_PWR_EN is set to height
Position；And+5V_HDMI is set and is converted to the electric channel closing of+5V_HDMI_IN, i.e. HDMIIN_PWR_EN is set to low level, in this way+
The energy for the 5V_S0 for having the end MB is output to the end Sink by 5V_HDMI；
Then, the HDMI transmission channel that converter is controlled is switched to HDMI output mode by control chip, such as by HDMI
It opens in the channel that DP out is switched to HDMI out in transmission channel；
Meanwhile HDMI input data line will receive the HPD signal of HDMI Sink equipment transmission, and export DP signal to institute
State HDMI Sink equipment.
Optionally, control chip provided in an embodiment of the present invention can be ECIO chip.
The power supply energy control method of HDMI connector provided in an embodiment of the present invention, can be connected according to HDMI connector
HDMI equipment type, the HDMI transmission channel controlled power supply energy channel and converter is accordingly arranged so that
The power supply energy control of HDMI connector is corresponding to operating mode locating for HDMI connector, ensure that the normal work of HDMI connector
Make.
The embodiment of the present invention also provides a kind of power supply energy control system of HDMI connector, and the structure of the system can be with figure
The structure of HDMI connector shown in 2 is similar, and in conjunction with Fig. 2, which may include:
Control chip 1, and the HDMI interface 2 that connect of control chip, respectively with the control chip and the HDMI
The converter 3 of interface connection；
Wherein, chip is controlled, for when having detected that HDMI equipment is linked into HDMI interface, determining the HDMI equipment
Type；Be arranged corresponding with the type is carried out to the power supply energy channel of HDMI connector；Logical to the power supply energy
After road carries out setting corresponding with the type, at the HDMI transmission channel corresponding with the type that control converter is controlled
In opening state, so that HDMI connector transmits data by the HDMI transmission channel.
Optionally, HDMI interface can trigger HDMI cable transmission device and access signal when accessing HDMI equipment, so that
When control chip detects that the HDMI cable transmission has equipment to access signal, determining has HDMI equipment to access HDMI interface；
Optionally, when HDMI interface accesses HDMI Source equipment, except triggering HDMI cable transmission device accesses signal
Outside, it also can trigger HDMI input data line transmission the first signal (such as high signal)；
Optionally, control chip has equipment to access signal, and the HDMI confirmly detecting HDMI cable transmission
When input data line transmission has the first signal, it may be determined that HDMI Source equipment accesses HDMI interface, so as to be specifically used for,
HDMI out-put supply energy is set to low level, HDMI input power energy is set to a high position, and control the converter for HDMI
Transmission channel is switched to HDMI input pattern, to receive the signal of the HDMI Source equipment transmission.
Optionally, control chip can be in close state by the way that the first ALT-CH alternate channel is arranged, and be realized HDMI out-put supply
Energy is set to low level, and the second ALT-CH alternate channel of setting is in the open state, realizes the HDMI power supply energy inputted being set to a high position；Its
In, first ALT-CH alternate channel is to control the power supply energy that chip exports to convert to the ALT-CH alternate channel of HDMI out-put supply energy,
Second ALT-CH alternate channel is that HDMI out-put supply energy is converted to the ALT-CH alternate channel of HDMI input power energy.
Optionally, when HDMI interface accesses HDMI Sink equipment, except triggering HDMI cable transmission device accesses signal
Outside, it also can trigger HDMI input data line transmission second signal (such as low level signal).
Optionally, control chip has equipment to access signal, and the HDMI confirmly detecting HDMI cable transmission
When input data line transmission has second signal, it may be determined that HDMI Sink equipment accesses HDMI interface, will so as to be specifically used for
HDMI out-put supply energy is set to a high position, HDMI input power energy is set to low level, and control the converter and pass HDMI
Defeated channel is switched to HDMI output mode, with to the HDMI Sink device transmission signal.
Optionally, control chip can be in the open state by the first ALT-CH alternate channel of setting, realizes HDMI out-put supply
Energy is set to a high position, and the second ALT-CH alternate channel of setting is in close state, realizes HDMI input power energy being set to low level.
The power supply energy control system of HDMI connector provided in an embodiment of the present invention, can be connected according to HDMI connector
HDMI equipment type, the HDMI transmission channel controlled power supply energy channel and converter is accordingly arranged so that
The power supply energy control of HDMI connector is corresponding to operating mode locating for HDMI connector, ensure that the normal work of HDMI connector
Make.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of power supply energy control method of HDMI connector characterized by comprising
When control chip detects that HDMI equipment is linked into the HDMI interface of HDMI connector, the class of the HDMI equipment is determined
Type；
Be arranged corresponding with the type is carried out to the power supply energy channel of HDMI connector；
After carrying out setting corresponding with the type to the power supply energy channel, the converter for controlling HDMI connector is controlled
The HDMI transmission channel corresponding with the type of system is in the open state, so that HDMI connector is transmitted by the HDMI
Channel transmission data；
The type of the HDMI equipment includes: HDMI Source equipment and HDMI Sink equipment；
When determining that the HDMI interface accesses the HDMI Source equipment, the power supply energy to HDMI connector is logical
It includes: that HDMI out-put supply energy is set to low level that road, which carries out be arranged corresponding with the type, and by HDMI input power energy
Amount is set to a high position；
Wherein, described HDMI out-put supply energy is set to low level to include:
The first ALT-CH alternate channel is arranged to be in close state, first ALT-CH alternate channel is the power supply energy conversion for controlling chip output
To the ALT-CH alternate channel of HDMI out-put supply energy；
The power supply energy by HDMI input is set to a high position and includes:
It is in the open state that second ALT-CH alternate channel is set, second ALT-CH alternate channel is that HDMI out-put supply energy is converted to HDMI
The ALT-CH alternate channel of input power energy；
When determining that the HDMI interface accesses the HDMI Sink equipment, the power supply energy channel to HDMI connector
Carrying out be arranged corresponding with the type includes: that HDMI out-put supply energy is set to a high position, and by HDMI input power energy
It is set to low level；
Wherein, described HDMI out-put supply energy is set to a high position to include:
It is arranged that the first ALT-CH alternate channel is in the open state, first ALT-CH alternate channel is the power supply energy conversion for controlling chip output
To the ALT-CH alternate channel of HDMI out-put supply energy；
It is described HDMI input power energy is set to low level to include:
The second ALT-CH alternate channel is arranged to be in close state, second ALT-CH alternate channel is that HDMI out-put supply energy is converted to HDMI
The ALT-CH alternate channel of input power energy.
2. the power supply energy control method of HDMI connector according to claim 1, which is characterized in that the control chip
Detect that HDMI equipment is linked into the HDMI interface of HDMI connector and includes:
When detecting that HDMI cable transmission has equipment to access signal, determining has HDMI equipment to access HDMI interface；Wherein, described
When HDMI interface accesses HDMI equipment, the HDMI cable transmission device access signal is triggered.
3. the power supply energy control method of HDMI connector according to claim 2, which is characterized in that the HDMI equipment
Type include: HDMI Source equipment；
The type of the determination HDMI equipment includes:
If detecting, the transmission of HDMI input data line has the first signal, it is determined that the type is HDMI Source equipment；Its
In, when the HDMI interface accesses HDMI Source equipment, triggers the HDMI input data line and transmit the first signal.
4. the power supply energy control method of HDMI connector according to claim 1, which is characterized in that the HDMI equipment
Type be HDMI Source equipment when, it is described control HDMI connector converter controlled it is corresponding with the type
HDMI transmission channel is in the open state to include:
It controls the converter and HDMI transmission channel is switched to HDMI input pattern, to receive the HDMI Source equipment
The signal of transmission.
5. the power supply energy control method of HDMI connector according to claim 4, which is characterized in that further include:
HDMI input power energy is drawn high to HDMI Source equipment by the hot plug test side of HDMI input data line,
So that HDMI Source equipment output filtering modulation differential signal TMDS.
6. the power supply energy control method of HDMI connector according to claim 2, which is characterized in that the HDMI equipment
Type include: HDMI Sink equipment；
The type of the determination HDMI equipment includes:
If detecting, the transmission of HDMI input data line has second signal, it is determined that the type is HDMI Sink equipment；Wherein,
When the HDMI interface access HDMI Sink equipment, the HDMI input data line transmission second signal is triggered.
7. the power supply energy control method of HDMI connector according to claim 1, which is characterized in that the HDMI equipment
Type be HDMI Sink equipment when, it is described control HDMI connector converter controlled it is corresponding with the type
HDMI transmission channel is in the open state to include:
It controls the converter and HDMI transmission channel is switched to HDMI output mode, to be transmitted to the HDMI Sink equipment
Signal.
8. the power supply energy control method of HDMI connector according to claim 7, which is characterized in that further include:
HPD signal is detected by the hot plug that HDMI input data line receives the HDMI Sink equipment transmission, and exports display
Interface DP signal is to the HDMI Sink equipment.
9. a kind of power supply energy control system of HDMI connector characterized by comprising control chip, with the control core
The HDMI interface of piece connection, the converter being connect respectively with the control chip and the HDMI interface；
Wherein, the control chip, for determining the HDMI when having detected that HDMI equipment is linked into the HDMI interface
The type of equipment；Be arranged corresponding with the type is carried out to the power supply energy channel of HDMI connector；To the power supply energy
After measuring channel progress setting corresponding with the type, controls the HDMI corresponding with the type that the converter is controlled and pass
Defeated channel is in the open state, so that HDMI connector transmits data by the HDMI transmission channel；
The type of the HDMI equipment includes: HDMI Source equipment and HDMI Sink equipment；
The control chip is when determining that the HDMI interface accesses the HDMI Source equipment, by HDMI out-put supply energy
Amount is set to low level, and HDMI input power energy is set to a high position；
Wherein, described HDMI out-put supply energy is set to low level to include:
The first ALT-CH alternate channel is arranged to be in close state, first ALT-CH alternate channel is the power supply energy conversion for controlling chip output
To the ALT-CH alternate channel of HDMI out-put supply energy；
The power supply energy by HDMI input is set to a high position and includes:
It is in the open state that second ALT-CH alternate channel is set, second ALT-CH alternate channel is that HDMI out-put supply energy is converted to HDMI
The ALT-CH alternate channel of input power energy；
The control chip is when determining that the HDMI interface accesses the HDMI Sink equipment, by HDMI out-put supply energy
It is set to a high position, and HDMI input power energy is set to low level；
Wherein, described HDMI out-put supply energy is set to a high position to include:
It is arranged that the first ALT-CH alternate channel is in the open state, first ALT-CH alternate channel is the power supply energy conversion for controlling chip output
To the ALT-CH alternate channel of HDMI out-put supply energy；
It is described HDMI input power energy is set to low level to include:
The second ALT-CH alternate channel is arranged to be in close state, second ALT-CH alternate channel is that HDMI out-put supply energy is converted to HDMI
The ALT-CH alternate channel of input power energy.
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| CN201511001233.4A CN105655838B (en) | 2015-12-28 | 2015-12-28 | A kind of the power supply energy control method and system of HDMI connector |
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|---|---|---|---|
| CN201511001233.4A CN105655838B (en) | 2015-12-28 | 2015-12-28 | A kind of the power supply energy control method and system of HDMI connector |
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| Publication Number | Publication Date |
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| CN105655838A CN105655838A (en) | 2016-06-08 |
| CN105655838B true CN105655838B (en) | 2018-12-14 |
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| CN111478127B (en) * | 2020-04-17 | 2020-12-29 | 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20150067195A1 (en) * | 2013-08-30 | 2015-03-05 | Manish Sharma | Hdmi source and sink device over single hdmi connector |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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