CN1205557C - Infrared remote controller - Google Patents
Infrared remote controller Download PDFInfo
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- CN1205557C CN1205557C CN 00130315 CN00130315A CN1205557C CN 1205557 C CN1205557 C CN 1205557C CN 00130315 CN00130315 CN 00130315 CN 00130315 A CN00130315 A CN 00130315A CN 1205557 C CN1205557 C CN 1205557C
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- infrared
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- serial interfaces
- receiver
- infrared receiver
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Abstract
The present invention relates to an infrared remote controller which comprises an infrared receiver, an infrared emitter, a wafer group and a switching circuit, wherein the infrared receiver is arranged in a computer host; the wafer group is provided with an infrared receiver end and a sequence interface end and is used for connecting a central processing unit and a peripheral device of a computer; the switching circuit is connected between the sequence interface end and the infrared receiver and is used for transmitting signals of the receiver to the sequence interface end; an application program is saved in the central processing unit for supplying control signals for determining whether the switching circuit is actuated or not. The controller only uses one receiver for receiving signals of different coding modes, and has the advantages of portability and space saving.
Description
Technical field
The present invention is about the infrared remote controller of a kind of telechiric device, particularly a kind of laptop computer, in order to remote-control computer in certain distance to carry out specific function.
Background technology
Because infrared remote controller uses light and handy convenient, becomes the basic outfit of general household electrical appliances such as TV, stereo set already.Infrared remote controller mainly divides two kinds: infrared (CIR) telechiric device of a kind of consumption-orientation and fast infrared (FIR) telechiric device.The former price is lower, but remote control distance is shorter.Latter's remote control distance is far away, but price is higher; Both cut both ways, and what general household electrical appliances were equipped with is the consumption-orientation infrared remote-control device.
In field of household appliances, the laptop computer with infra-red remote control function also becomes main flow gradually.Because two types signal encoding mode difference, the central processing unit of existing computer is typically provided with different pin terminals, in order to receive two kinds of different signals.Generally speaking, the fast infrared signal is received by the fast infrared terminal of special use, and the consumption-orientation infrared signal is then received by serial interfaces.Therefore, if a main frame desire is used two kinds of systems, this main frame need be installed two groups of infrared receivers usually, respectively in order to receive above-mentioned two kinds of signals, and be sent to corresponding reception terminal respectively, like this, two kinds of different coded signals could be differentiated and understand to main frame.
The infrared remote controller utilization of existing laptop computer just can be received from infrared (CIR) signal that infrared transmitter is sent at the external infrared receiver of serial interfaces.The user can utilize the infrared transmitter remote-control computer, carries out as various operations such as page turnings.Utilize this structure, the inconvenience that infrared receiver that separates with main frame and line between the two will cause laptop computer to carry and use.
As shown in Figure 1, it is the user mode synoptic diagram of existing infrared remote controller, wherein, infrared receiver 13 joins with the serial interfaces (not marking) of laptop computer 11 by laptop computer 11 rear sides, CIR infrared transmitter (transmitter) 15 infrared signals of being sent are received by infrared receiver 13, be converted into electric signal after, be transferred to laptop computer 11 by serial interfaces, laptop computer 11 produces corresponding operating immediately, as page turning.
As shown in Figure 2, be the circuit block diagram of existing infrared remote controller, wherein, laptop computer 11 has serial interfaces 22, in order to connect bridgt circuit (south bridge) 21 and infrared receiver 13.Infrared receiver 13 receives the infrared signal that CIR infrared transmitter 15 is sent, and after being converted to electric signal, being about to electric signal and sending bridgt circuit 21 to by serial interfaces 22 and serial interfaces bus 28.After signal was handled through central processing unit (not marking), laptop computer 11 was made the page turning action immediately.As previously mentioned, under infrared receiver 13 and state that laptop computer 11 separates, infrared receiver 13 causes the inconvenience of carrying and using with the wiring meeting, and infrared receiver 13 only can be used with CIR infrared transmitter 15, and this is its shortcoming.
Summary of the invention
The object of the present invention is to provide a kind of infrared remote controller that uses an infrared receiver can receive above-mentioned two kinds of signals.But the signal that its received code mode is different (CIR and FIR).
Another object of the present invention is to provide a kind of infrared remote controller, but make two kinds of different signals of single infrared receiver received code mode with commutation circuit of changeable FIR terminal and serial interfaces terminal.
Another purpose of the present invention is to provide a kind of infrared remote controller of opening or ending the Control Software of infra-red remote control function that has.
Four of purpose of the present invention is to provide a kind of and makes progress (pageup) or the infrared remote controller of (pagedown) page turning downwards.
Five of purpose of the present invention is to provide the infrared remote controller that is built in host computer in a kind of infrared receiver, than saving usage space and easy to carry with the main frame separated structures in the prior art.
For achieving the above object, the present invention takes following technical measures:
A kind of infrared remote controller of the present invention comprises an infrared receiver and an infrared transmitter; Also comprise: a bridgt circuit and a commutation circuit;
Infrared receiver is arranged on computer inside;
Bridgt circuit has infrared receiver end and serial interfaces end, is used for the central processing unit and the peripheral equipment of UNICOM's laptop computer;
Commutation circuit is connected between serial interfaces end and infrared receiver, transfers to the serial interfaces end in order to the signal that infrared receiver is received;
One application program is stored in the central processing unit, so that a control signal to be provided, to be used for decision and whether to activate commutation circuit.
Wherein, described infrared receiver can be the fast infrared line receiver.
Wherein, the signal of described infrared transmitter emission can be the infrared signal of ASKIR pattern.
Wherein, described commutation circuit connects the keyboard controller of described computer, and commutation circuit is under the control of application program control signal, when activateding, the signal that described infrared receiver receives transfers to the serial interfaces end of serial interfaces end and described bridgt circuit, to carry out data processing.
Wherein, described commutation circuit connects the keyboard controller of described computer, and commutation circuit is under the control of application program control signal, and when not activateding, described infrared receiver recovers normal function in order to receive fast infrared line signal and described serial interfaces.
Wherein, described application program can comprise the following steps:
When the user determined to activate telechiric device, setting serial interfaces was the ASKIR pattern, in order to receive its signal;
Described commutation circuit transfers to the serial interfaces end with the signal that described infrared receiver receives, and is transferred to the serial interfaces end of described bridgt circuit, to carry out data processing.
Another kind of infrared remote controller of the present invention comprises: an infrared receiver and an infrared transmitter; Be used for the signal of receiving infrared-ray transmitter emission and utilize laptop computer to decode this signal to carry out data processing; It is characterized in that, also comprise: a bridgt circuit and a commutation circuit;
Bridgt circuit is used for the central processing unit and the peripheral equipment of UNICOM's laptop computer, has infrared receiver end and serial interfaces end at least;
Commutation circuit is connected between serial interfaces end and infrared receiver, transfers to the serial interfaces end in order to the signal that this infrared receiver is received.
Description of drawings
Reaching embodiment in conjunction with the accompanying drawings is described in detail as follows architectural feature of the present invention:
Brief description of drawings:
Fig. 1 is the user mode synoptic diagram of existing infrared remote controller.
Fig. 2 is the circuit block diagram of existing infrared remote controller.
Fig. 3 is the user mode synoptic diagram of infrared remote controller of the present invention.
Fig. 4 is the circuit block diagram of infrared remote controller of the present invention.
Fig. 5 is the circuit diagram of commutation circuit among the infrared remote controller embodiment of the present invention.
Fig. 6 is the control flow chart of infrared remote controller of the present invention, and wherein, Fig. 6 A is a main flow chart, and Fig. 6 B is for monitoring the sub-process figure of serial interfaces.
Embodiment
As shown in Figure 3, it is the user mode synoptic diagram of infrared remote controller of the present invention, and wherein, infrared receiver 33 is installed on the antetheca of laptop computer 31 bases, to receive the infrared signal that CIR infrared transmitter 35 is sent.Like this, not only can remove the inconvenience that external infrared receiver and connection line brings, more can vacate a serial interfaces and use for other external devices, this is one of advantage of the present invention.
As shown in Figure 4, it is the circuit block diagram of infrared remote controller of the present invention, wherein, laptop computer 31 comprise serial interfaces 43, serial interfaces bus 431, in order to receive the infrared receiver 33 and the FIR bus 331 of the signal that CIR infrared transmitter 35 sent.In addition, infrared remote controller of the present invention also comprises commutation circuit 50, keyboard controller 45.
IRRX3 is a terminal of FIR bus 331, and SIN1-5 is a terminal of serial interfaces bus 431, and REMOTE-CTRL-EN# is a terminal of keyboard controller 45.Commutation circuit 50 connects the IRRX3 terminal 42 of FIR buses 331 and the SIN1-5 terminal 44 of serial interfaces bus 431, and switches IRRX3 terminal 42 and the short circuit of 44 of SIN1-5 terminals and the relation of opening circuit according to the state (0 or 1) of the RIMOTE-CTRL-EN# terminal 46 of keyboard controller 45.The state of REMOTE-CTRL-EN# terminal 46 is controlled by application program.
When application program is connected IRRX3 terminals 42 and SIN1-5 terminals 44 by key controller 45 and commutation circuit 50, the signal that is sent by CIR infrared transmitter 35 can be sent to SIN1-5 terminal 44 after infrared receiver 33 is converted to electric signal.For make central processing unit can the decipher infrared receiver electric signal of 33 outputs, before connecting IRRX3 terminal 42 and SIN1-5 terminal 44, application program is cut off the line of 44 of IRRX3 terminals 42 and SIN1-5 terminals by keyboard controller 45 and commutation circuit 50, the signal that is sent by CIR infrared transmitter 35 only can be sent to bridgt circuit 41 via FIR bus 331 after infrared receiver 33 is converted to electric signal.The signal that have only the FIR transmitter to be sent this moment just can be the decipher of central processing unit institute.So, do not establishing in addition under the situation of an infrared receiver, the user can be switched opening circuit or short circuit of 44 of IRRX3 terminal 42 and SIN1-5 terminals according to need, to select CIR system or FIR system.
As shown in Figure 5, circuit diagram for commutation circuit among the infrared remote controller embodiment of the present invention, commutation circuit 50 mainly comprises a logic controller 51, it has 5 branch connecting pins, wherein, the short circuit of pin A and pin Y with open circuit and can control, be i.e. the short circuit of 44 of IRRX3 terminal 42 and SIN1-5 terminals and open circuit and can just control by the current potential of REMOTE-CTRL-EN# terminal 46 by the current potential of pin OE# height (highor low).According to the present invention, when REMOTE-CTRL-EN# terminal 46 was noble potential, IRRX3 terminal 42 formed short circuit with SIN1-5 terminal 44.
As shown in Figure 6, it is the control flow chart of infrared remote controller of the present invention, and wherein, Fig. 6 A is a main flow chart, and Fig. 6 B is for monitoring the sub-process figure of serial interfaces; At first; master routine is inquired about user's desire and is suspended or start distant control function (step 60); if user's desire starts transmitter; the SIN1-5 terminal 44 of promptly setting serial interfaces becomes ASKIR pattern (step 61); connect infrared receiver to serial interfaces circuit (step 62), and start supervision serial interfaces secondary flow journey (step 63).Monitor that serial interfaces secondary flow journey comprises two steps: wait for whether serial interfaces has data to enter, and promptly the user presses transmitter button (step 68); And the judgment data kind simulates page or leaf or the nextpage button is given operating system (step 69).
If user's desire is suspended transmitter, master routine promptly carry out step 64, stops to monitor the serial interfaces sub-process, then cuts off the circuit (step 65) of infrared receiver to serial interfaces, recovers the normal function (step 66) of serial interfaces at last.
Compared with prior art, the present invention has following effect:
Infrared remote controller of the present invention just can receive two kinds of signals with an infrared receiver, but the different signal (CIR and FIR) of its received code mode; The present invention uses the commutation circuit of changeable FIR terminal and serial interfaces terminal, realizes above-mentioned functions; Be built in host computer in the infrared remote controller of the present invention, it is easy to carry, can save usage space.
Foregoing is to utilize embodiment that technical characterictic of the present invention is described, is not to be used to limit protection scope of the present invention, even there is the people to change slightly on the basis of the present invention's design, must belong in protection scope of the present invention.
Claims (5)
1, a kind of infrared remote controller comprises an infrared receiver (33) and an infrared transmitter (35), and wherein infrared receiver (33) is arranged on computer-internal, can be used for receiving consumption-orientation and fast infrared pattern formula infrared signal;
It is characterized in that, also comprise:
Bridgt circuit (41) has infrared ray receiving end and serial interfaces, and is connected between the serial interfaces end (43) of described infrared remote receiver (33) and computing machine;
Commutation circuit (50) is connected between infrared receiver (33) and the serial interfaces end (43), transfers to serial interfaces end (43) in order to the signal that when activateding infrared receiver (33) is received;
Central processing unit is used to provide a control signal, and whether decision activates commutation circuit, and reads the signal of infrared receiver (33) output from described serial interfaces end (43), wherein
When described commutation circuit (50) when activateding, the signal that described infrared receiver (33) receives transfers to the serial interfaces of serial interfaces end (43) and described bridgt circuit, so that the consumption-orientation infrared signal is handled; When not activateding, described serial interfaces recovers normal function, is used to receive the fast infrared signal.
2, telechiric device according to claim 1 is characterized in that, described infrared receiver is the fast infrared line receiver.
3, telechiric device according to claim 1 is characterized in that, the signal of described infrared transmitter emission is the infrared signal of ASKIR pattern.
4, telechiric device according to claim 1 is characterized in that,
When the user determined to activate telechiric device, setting serial interfaces was the ASKIR pattern, in order to receive its signal.
5. as the telechiric device of above-mentioned arbitrary claim, it is characterized in that described computing machine is a mobile computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00130315 CN1205557C (en) | 2000-10-30 | 2000-10-30 | Infrared remote controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00130315 CN1205557C (en) | 2000-10-30 | 2000-10-30 | Infrared remote controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1351294A CN1351294A (en) | 2002-05-29 |
| CN1205557C true CN1205557C (en) | 2005-06-08 |
Family
ID=4594103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00130315 Expired - Fee Related CN1205557C (en) | 2000-10-30 | 2000-10-30 | Infrared remote controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1205557C (en) |
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2000
- 2000-10-30 CN CN 00130315 patent/CN1205557C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1351294A (en) | 2002-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: HONHQI CO., LTD. Free format text: FORMER OWNER: ACER COMPUTER CO., LTD. Owner name: WEICHUANG ZITONG CO., LTD. Effective date: 20020725 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20020725 Address after: Taiwan, China Applicant after: Acer Inc Co-applicant after: Weichuang Zitong Co., Ltd. Address before: Taiwan, China Applicant before: Acer Computer Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050608 Termination date: 20191030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |