CN201600782U - Remote control device of combined multimedia equipment - Google Patents
Remote control device of combined multimedia equipment Download PDFInfo
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- CN201600782U CN201600782U CN2010200562237U CN201020056223U CN201600782U CN 201600782 U CN201600782 U CN 201600782U CN 2010200562237 U CN2010200562237 U CN 2010200562237U CN 201020056223 U CN201020056223 U CN 201020056223U CN 201600782 U CN201600782 U CN 201600782U
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- infrared
- receiver
- remote control
- demoder
- interface circuit
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Abstract
The utility model provides a remote control device of combined multimedia equipment, comprising respective remote controllers, respective remote control receivers and an interface circuit. Each remote controller comprises an encoder and an infrared signal transmitter, each remote control receiver comprises an infrared signal receiver and a signal decoder, baseband signals generated by the encoder are output to the infrared transmitter, the infrared transmitter modulates the baseband signals to infrared ray to be transmitted, the infrared signal receiver receives the infrared ray modulating signals and then demodulates and outputs the baseband signals to be connected with the decoder, the encoder corresponds to the decoder, and input ends of the interface circuit are respectively connected with outputs of the infrared signal receivers while output ends of the interface circuit are respectively connected with the decoders. The remote control device has the advantages that the remote control device brings convenience for users to operate after being mounted and connected, and can be used for operating equipment by means of aligning to the equipment.
Description
Technical field
The utility model relates to a kind of multimedia equipment, the unified telechiric device when particularly the cover multimedia entertainment equipment that combined by multiple devices of a cover uses.
Background technology
The televisor of one of household electrical appliance, set-top box, household electrical appliances multimedia equipments such as DVD, distant control function all is indispensable ingredient, the telepilot of multimedia equipment sends the infrared ray through coding, and multimedia equipment demodulates the remote control coding pulse after receiving by infrared remote control receiver, interrupts input by the I/O mouth among the microprocessor MCU on the equipment again, the MCU decoding processing draws the remote control mode information that receives, and realizes the operating function of telepilot.
When equipment such as multimedia equipment such as televisor, CATV set-top-box, video recorder, DVD are combined into a cover multimedia entertainment equipment, when needs are operated each relevant device, need to use telepilot separately to carry out straighforward operation, these equipment telepilot when operation all needs to aim at corresponding apparatus.For example the telepilot of TV is aimed at televisor, the telepilot alignment machine top box of set-top box, inconvenient operation.
Summary of the invention
The utility model provides a kind of multimedia equipment telechiric device of unifying remote control in order to overcome the deficiency of multimedia equipment telepilot inconvenient operation in the prior art.
The utility model in order to realize the technical scheme that its technical purpose adopts is: a kind of telechiric device of combinational multimedia equipment, the telepilot and the receiver of remote-control sytem that comprise each equipment itself in the combinational multimedia equipment, described telepilot comprises scrambler and infrared projector, described receiver of remote-control sytem comprises infrared signal receiver and demoder, the baseband signal that described scrambler produces outputs to infrared transmitter, described infrared transmitter is modulated to described baseband signal on the infrared ray and sends, described infrared signal receiver receives described modulation of infrared rays signal demodulation output baseband signal and connects described demoder, described scrambler is corresponding with demoder, also comprise an interface circuit, the input end of described interface circuit links to each other with the output of described infrared signal receiver respectively, and output terminal links to each other with described demoder respectively.
Further, in the telechiric device of above-mentioned a kind of combinational multimedia equipment: described interface circuit comprises one group of emitter follower, the base stage of described emitter follower connects the output terminal of described infrared receiver respectively, and its emitter connects the input end of described demoder by current-limiting resistance.
The utility model has the advantages that: owing to utilize of the infrared receiver parallel connection of an interface circuit the receiver of remote-control sytem of each individual equipment in the unit equipment, when any one telepilot carries out remote control, after the receiver of remote-control sytem of any one equipment is received, after the infrared receiver demodulation, can both be transferred to the demoder of all equipment by interface circuit, have only corresponding demoder to decode, the processor that outputs to itself is handled.Like this, one-step installation makes things convenient for the user to operate after connecting, and operates various device at every turn and only need aim at an equipment.
Below in conjunction with the drawings and specific embodiments the utility model is done comparatively detailed description.
Description of drawings
Fig. 1 is the remote-receiver block diagram of the utility model embodiment 1.
Interface circuit schematic diagram among Fig. 2 embodiment 1.
Embodiment
As shown in Figure 1, a kind of telechiric device of combinational multimedia equipment, comprise separately telepilot and receiver of remote-control sytem, described telepilot comprises scrambler and infrared projector, described receiver of remote-control sytem comprises infrared signal receiver and decoding signals, the baseband signal that described scrambler produces outputs to infrared transmitter, described infrared transmitter is modulated to described baseband signal on the infrared ray and sends, described infrared signal receiver receives described modulation of infrared rays signal demodulation output baseband signal and connects described demoder, described scrambler is corresponding with demoder, also comprise an interface circuit, the input end of described interface circuit links to each other with the output of described infrared signal receiver respectively, and output terminal links to each other with described demoder respectively.In the present embodiment, N telepilot and receiver of remote-control sytem corresponding with it are arranged respectively, a wherein arbitrary telepilot X sends telecommand, any one receiver of remote-control sytem can both receive, and can both carry out demodulation therein, demodulate baseband signal, be transferred to by interface circuit in the demoder of each receiver of remote-control sytem, have only the demoder with the corresponding receiver of remote-control sytem X of telepilot X just can be correctly decoded, the internal bus of this equipment of outputing to, microprocessor (MCU) by this equipment is handled, and other demoder is not owing to being correctly decoded, so miscellaneous equipment can be not disturbed.
Fig. 2 is the physical circuit schematic diagram of interface circuit in the present embodiment; as shown in the figure; described interface circuit comprises one group of emitter follower and other holding circuit; emitter follower the effect here is the load capacity that increases infrared receiver; the output of an infrared receiver is outputed in the demoder of all multimedia equipments simultaneously; the base stage of described emitter follower connects the output terminal of described infrared receiver respectively, and its emitter connects the input end of described demoder by described current-limiting resistance.
Televisor, set-top box, the telepilot of household electrical appliances multimedia equipments such as DVD sends the infrared ray through different coding.Multimedia equipment is again by demodulating the remote control coding pulse of height after the infrared remote control receiver reception separately, interrupt input by the I/O mouth among the microprocessor MCU on the distinct device again, the MCU decoding processing draws and receives remote control mode information, realizes the operating function of each telepilot.
In this remote control process, the infrared ray of various different codings, all need by
After receiving, infrared remote control receiver demodulates remote control coding pulse separately,
The main thought of present embodiment is exactly: the infrared remote control receiver circuit of distinct device is coupled together by an interface.Different telepilots points to the infrared remote control receiver of any one equipment, and infrared remote control receiver demodulates different remote control coding pulses.Because outer receiver of remote-control sytem circuit couples together by an interface, so the I/O mouth that remote control coding pulse meeting enters among the microprocessor MCU on the distinct device interrupts input, the MCU decoding processing draws and receives remote control mode information, realizes the operating function of each telepilot requirement.
Concrete infrared remote control receiver circuit theory diagrams as shown in Figure 2, this figure represents the interface circuit that the remote control of certain equipment in a whole set of multimedia combination receives.In the present embodiment, demoder task is partly finished by the microprocessor of each multimedia equipment itself, such as, the demoder of the receiver of remote-control sytem of televisor function is partly finished by the primary processor of televisor inside, after receiver of remote-control sytem receives infrared signal, carry out demodulation, the output baseband signal is exactly the remote control coding pulse signal, be directly inputted in the primary processor of this multimedia equipment, simultaneously, receive the base stage of triode Q1 by one 100 ohm resistance R 5, triode Q1 is an emitter follower, and its model is BCS47.This emitter follower amplifies the remote control coding pulse signal of receiver of remote-control sytem output; increase its load capacity; output to connection terminal by 100 ohm resistance R 2; and then output in the primary processor of other multimedia equipment; equally; this multimedia equipment can also receive the signal that other telepilot receiver receives by connection terminal, for safe in utilization, also increased in the line and prevents electrostatic damage circuit protection diode D1 and D2.The model of D1 and D2 is BAV99 in the present embodiment, and 100 ohm resistance R 1, R3, R2 and R5 are set respectively in the both sides that prevent electrostatic damage circuit protection diode D1 and D2.470 ohm resistance R 4 is biasing resistors of emitter follower.The power supply of this interface circuit is 5V.
On the circuit of original infrared remote control receiver output remote control coding pulse, connect an emitter follower circuit, infrared remote control receiver is exported the remote control coding pulse output in another equipment.By a resistance the outer receiver of remote-control sytem of miscellaneous equipment is exported the remote control coding pulse more simultaneously and output to this equipment.
Like this, one-step installation makes things convenient for the user to operate after connecting, and operates various device at every turn and only need aim at an equipment.
Claims (2)
1. the telechiric device of a combinational multimedia equipment, the telepilot and the receiver of remote-control sytem that comprise each equipment itself in the combinational multimedia equipment, described telepilot comprises scrambler and infrared projector, described receiver of remote-control sytem comprises infrared signal receiver and demoder, the baseband signal that described scrambler produces outputs to infrared transmitter, described infrared transmitter is modulated to described baseband signal on the infrared ray and sends, described infrared signal receiver receives described modulation of infrared rays signal demodulation output baseband signal and connects described demoder, described scrambler is corresponding with demoder, it is characterized in that: also comprise an interface circuit, the input end of described interface circuit links to each other with the output of described infrared signal receiver respectively, and output terminal links to each other with described demoder respectively.
2. the telechiric device of a kind of combinational multimedia equipment according to claim 1, it is characterized in that: described interface circuit comprises one group of emitter follower, the base stage of described emitter follower connects the output terminal of described infrared receiver respectively, and its emitter connects the input end of described demoder by current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200562237U CN201600782U (en) | 2010-01-08 | 2010-01-08 | Remote control device of combined multimedia equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200562237U CN201600782U (en) | 2010-01-08 | 2010-01-08 | Remote control device of combined multimedia equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201600782U true CN201600782U (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200562237U Expired - Fee Related CN201600782U (en) | 2010-01-08 | 2010-01-08 | Remote control device of combined multimedia equipment |
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| CN (1) | CN201600782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136658A1 (en) * | 2018-01-11 | 2019-07-18 | 鹤壁天海电子信息系统有限公司 | Infrared data learning method, device, and electronic apparatus |
-
2010
- 2010-01-08 CN CN2010200562237U patent/CN201600782U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019136658A1 (en) * | 2018-01-11 | 2019-07-18 | 鹤壁天海电子信息系统有限公司 | Infrared data learning method, device, and electronic apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20130108 |