CN1719405A - Audio-visual playing program telechirics and method - Google Patents
Audio-visual playing program telechirics and method Download PDFInfo
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- CN1719405A CN1719405A CN 200410028078 CN200410028078A CN1719405A CN 1719405 A CN1719405 A CN 1719405A CN 200410028078 CN200410028078 CN 200410028078 CN 200410028078 A CN200410028078 A CN 200410028078A CN 1719405 A CN1719405 A CN 1719405A
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Abstract
A kind of audio-visual playing program telechirics and method, this system comprises: a telepilot is used to import audio-visual Play Control order, and produces a kind of infrared ray (CIR) signal according to this control command; One main frame comprises central processing unit, south bridge, I/O chipset, infrared signal processing module, Audio DJ message processing module, LCD display control module and LCD display panel.The infrared signal processing module is used for receiving infrared-ray signal, and with its modulation and be encoded into infrared ray information; Audio DJ message processing module is used for infrared ray information is converted into Audio DJ information, and it is passed to audio-visual playing program; The LCD display control module is used to receive audio-visual broadcast information, and controls audio-visual broadcast information and show on the LCD display panel.Implement the present invention, can control the broadcast situation of audio-visual playing program, and on the LCD of mainframe box front panel display panel, show audio-visual broadcast information by a telepilot.
Description
[technical field]
The present invention relates to a kind of computer applied algorithm be implemented the system and method for straighforward operation, particularly about the system and method for the audio-visual playing program under a kind of remote control computer operating system.
[background technology]
Now, during the playing back music CD of the audio-visual playout software (for example WindowsMedia Player player etc.) of user under the control operation system, generally all operate the command menu of audio-visual playout software, and then control audio-visual broadcast situation by computer keyboard or mousebutton.Yet this traditional audio-visual play operation pattern needs user operation keyboard or mousebutton before computing machine, and can not carry out the broadcast of the audio-visual playout software under the remote control operation system away from computer terminal, thereby has limited user moving range.In addition, do not provide corresponding audio-video playing function key on computer keyboard or the mouse, cause the user to operate the inconvenience of audio-visual playout software.
Along with the progress of science and technology, the processing power of personal computer is more and more stronger, thereby makes the consumer propose the requirement of higher personalization to personal computer (consumption-orientation computing machine).Technology and method that the user operates the control computer system by telepilot occur in succession, for example once are exposed in No. 00102916.9 patent of China of bulletin on August 6th, 2003, and its patent name is " method of remote control calculator system and this system of operation ".This patent has disclosed a kind of calculator system with telepilot of storage identification code (ID), comprises telepilot that produces the remote signal that is used for the remote control calculator system and the remote signal receiver of accepting remote signal from telepilot; ID stores respectively in telepilot and the remote controller signal receiver, if two ID couplings are carried out the remote signal from telepilot; Carry out the remote signal corresponding with the assignment key of telepilot according to the power state information of calculator system, remote signal not only can be carried out the application program of appointment, and can carry out landing as the operating system of Windows and so on.The invention of this patent has mainly disclosed the application program that lands safely and start appointment of remote control Windows system, yet this is not exposed the implementation of application program under the operating system of Windows and so on is carried out omnibearing control and straighforward operation.
For overcoming the deficiency of above-mentioned prior art, the invention provides a kind of audio-visual playing program telechirics and method, it is by inserting the signal processing module that is used to handle from the audio-visual playing program of control of remote controller on motherboard, and control audio-visual playing program, and audio-visual broadcast information is presented on the LCD display panel of mainframe box front panel by the message mechanism of operating system.
[summary of the invention]
Fundamental purpose of the present invention is to provide a kind of audio-visual playing program telechirics and method, it produces the broadcast situation that infrared signal comes audio-visual playing program under the operational computations machine operation system by a telepilot, and shows audio-visual broadcast information on the LCD of mainframe box front panel display panel.
For reaching the foregoing invention purpose, the invention provides a kind of audio-visual playing program telechirics.This system comprises: a telepilot, it is used to import audio-visual Play Control order, and according to this control command produce a kind of infrared signal (Consumer Infrared, CIR) or a kind of radiofrequency signal; One main frame, it comprises a central processing unit, south bridge, I/O chipset, infrared signal processing module, Audio DJ message processing module, LCD display control module and LCD display panel.Wherein, the infrared signal processing module, it is used for receiving infrared-ray signal, and infrared ray information is modulated and be encoded into to this infrared signal; Audio DJ message processing module, it is used for infrared ray information is converted into Audio DJ information, and this AudioDJ information is passed to audio-visual playing program under the operating system, and audio-visual broadcast information is passed to the LCD display control module; The LCD display control module, it is used to receive audio-visual broadcast information, and controls audio-visual broadcast information and show on the LCD display panel.
The present invention also provides a kind of audio-visual playing program remote control thereof, it is by the broadcast situation of audio-visual playing program under the telepilot operational computations machine operation system, and on the LCD display panel, showing audio-visual broadcast information, this method comprises the steps: (a) audio-visual control command by the audio-visual playing program of telepilot input operation; (b) telepilot produces an audio-visual control signal according to this control command, and this audio-visual control signal is a kind of infrared signal or a kind of radiofrequency signal; (c) receive above-mentioned audio-visual control signal, and should audio-visual control signal modulate and be encoded to an audio-visual control information; (d) described audio-visual control information is converted into an Audio DJ control information; (e) see through south bridge described Audio DJ control information is passed to audio-visual playing program under the operating system; (f) audio-visual playing program responds this Audio DJ control information and carries out audio-visual broadcast; (g) handle the audio-visual broadcast information of audio-visual playing program by the LCD display control module after, on the LCD display panel, show this audio-visual broadcast information, described audio-visual broadcast information comprises information such as audio-visual broadcast state, reproduction time and volume.
Wherein in step (c), described with the control signal modulation and be encoded into the also following step that comprises of audio-visual control information: (c1) to make audio-visual control signal port be upstate to configuration I/O, and store the executing state of primary thread; (c2) configuration receives the register address of audio-visual control signal, and selects interrupt mode to receive audio-visual control signal; (c3) audio-visual control information is modulated and be encoded to audio-visual control signal; (c4) start first in first out (First In and First Out, FIFO) service thread transmitting audio-video control information; (c5) remove fifo queue, the address that enables of corresponding register is changed to " 1 ", and wait for the reception interrupting information; (c6) judge whether interrupting information is audio-visual control information; If this interrupting information is not audio-visual control information, then continue to wait for interrupting information; If this interrupting information is audio-visual control information, then reads this audio-visual control information and be stored in the described fifo queue; (c7) judge whether to continue to receive audio-visual control information,, then wait for being received as audio-visual control information if continue to receive audio-visual control information; If no longer receive audio-visual control information, then disposing I/O reception control signal port is down state, and recovers the executing state of primary thread.
Wherein in step (d), describedly audio-visual control information is converted into Audio DJ control information comprises the steps: that (d1) starts the operating system; (d2) start Audio DJ service thread; (d3) Audio DJ service thread is converted into Audio DJ control information with audio-visual control information, and a system information formation is put in this Audio DJ control information; (d3) operating system loading one hook () function; (d4) hook () function obtains Audio DJ control information from described system information formation, and Audio DJ control information is passed to audio-visual playing program under the operating system.
By implementing the present invention, it can utilize a telepilot to produce the broadcast situation that infrared signal comes audio-visual playing program under the operational computations machine operation system, and shows audio-visual broadcast information on the LCD of mainframe box front panel display panel.
[description of drawings]
Fig. 1 is the computer system outward appearance skeleton view that the present invention has telepilot.
Fig. 2 is the telepilot outward appearance skeleton view of the audio-visual playing program telechirics of the present invention.
Fig. 3 is the inside computer system block diagram of the audio-visual playing program telechirics of the present invention.
Fig. 4 is the information flow control synoptic diagram of the audio-visual playing program telechirics of the present invention.
Fig. 5 is the Audio DJ signal processing module hierarchy synoptic diagram of the audio-visual playing program telechirics of the present invention.
Fig. 6 is that the infrared signal of the audio-visual playing program remote control thereof of the present invention receives process flow diagram.
Fig. 7 is that the infrared signal that utilizes of the audio-visual playing program remote control thereof of the present invention starts the method flow diagram of audio-visual playing program.
[embodiment]
Present embodiment adopts Windows operating system to describe described operating system, and adopts the audio-visual playing program of Windows to describe described audio-visual playing program.
As shown in Figure 1, be the computer system outward appearance skeleton view that the present invention has telepilot.This computer system that has telepilot comprises a main frame 1, display screen 2, telepilot 3, voice output 4, keyboard 5 and mouse 6.Wherein, the case front panel of main frame 1 is inlaid with an oval-shaped LCD display panel 10, the broadcast information of response when it is used to show audio-visual play under the computing machine Windows, information such as for example audio-visual broadcast state, reproduction time and volume.Display screen 2 also can be used for showing above-mentioned broadcast information.Telepilot 3 is the audio-visual Play Control orders that are used to accept user's input, and produce corresponding infrared signal or radiofrequency signal is come audio-visual broadcast situation under the control computer Windows according to this different Play Control order, adopt infrared signal (CIR signal) to describe in the present embodiment.
As shown in Figure 2, be the telepilot outward appearance skeleton view of the audio-visual playing program telechirics of the present invention.This telepilot comprises seven function keys 30, it is respectively ON/OFF key (On/Off), increases volume key (VOL+), Att key (VOL-), song fast forward button (＞‖), song advance key (＞|), song back spacer (＜|) and time-out/play button (■).The command code situation and the functional description of each function key 30 are as shown in table 1:
Table 1
| The function key sequence number | Fixed codeword | ASCII character | Functional description |
| K1 | AC | 0C | ON/OFF key (On/Off) |
| K2 | AC | 0B | Increase volume key (VOL+) |
| K3 | AC | 0A | Att key (VOL-) |
| K4 | AC | 23 | The song fast forward button (＞‖) |
| K5 | AC | 25 | The song key (＞|) that advances |
| K6 | AC | 28 | The song back spacer (＜|) |
| K7 | AC | 29 | Time-out/play button (■) |
The audio-visual playing program of Windows described in the present embodiment not only is a WindowsMedia Player player, also can be the various audio-visual playing program that is loaded under the Windows, for example Real Player or MP3 player etc.Below the main WindowsMedia Player that adopts present embodiment is described.
As shown in Figure 3, be the inside computer system block diagram of the audio-visual playing program telechirics of the present invention.Main frame 1 comprises a central processing unit (CPU) 11, south bridge (SouthBridge, SB) 12, I/O chipset (Super I/O) 13, infrared ray (CIR) signal processing module 14, Audio DJ message processing module 15, LCD display control module 16 and LCD display panel 10, its inner annexation is as shown in this figure.After telepilot 3 produces infrared signal and passes through infrared signal processing module 14 and receives, being sent to I/O chipset 13 handles, the infrared signal that receives by central processing unit 11 control south bridges 12 visits the audio-visual playing program on the Windows operating system 8 then, as Windows MediaPlayer player.The required audiovisual materials of the audio-visual playing program of Windows see through south bridge 12 by central processing unit 11 and read audio/video file in the photoelectricity driver (CD-ROM) 9.After the user presses function key 30 control commands of telepilot 3, by this command signal of main frame 1 demodulation is that the audio-visual playing program of Audio DJ control information startup Windows carries out audio-visual broadcast, its audio-visual broadcast information is shown on LCD display panel 10 or the display screen 2 by LCD display control module 16 after handling by Audio DJ message processing module 15 again.
As shown in Figure 4, be the information flow control synoptic diagram of the audio-visual playing program telechirics of the present invention.The user presses function key 30 orders of telepilot 3, and telepilot 3 produces an infrared signal according to these function key 30 orders immediately.After infrared signal processing module 14 receives this infrared signal,, and be sent to Audio DJ message processing module 15 with this infrared signal modulation treatment.Audio DJ message processing module 15 is converted into Audio DJ information with above-mentioned CIR information, described Audio DJ information is to be used to start the audio-visual playing program of Windows (as Media Player player), and controls the broadcast situation of the audio-visual playing program of this Windows.The Windows audio and video player directly exports the acoustic information of playing to voice output 4, and exports audio-visual broadcast information to Audio DJ message processing module 15.By Audio DJ message processing module 15 audio-visual broadcast information is sent to LCD display control module 16, audio-visual broadcast information is handled and is produced display message by LCD display control module 16, show above-mentioned audio-visual broadcast information, for example information such as broadcast state, reproduction time and volume control in LCD display panel (LCD Panel) 10 at last.
As shown in Figure 5, be the Audio DJ message processing module hierarchy synoptic diagram of the audio-visual playing program telechirics of the present invention.This Audio DJ message processing module 15 is the information interactions that are used to support between CIR signal processing module 14 and the LCD display control module 16, and it comprises received signal, analyzes and coded signal and startup and three major functions of the control audio-visual playing program of Windows.On the computer system layered angle, can be divided into hardware layer, operating system layer and application layer.Telepilot 3 and LCD display panel 10 are positioned at hardware layer; CIR.sys file and LCM.sys file are positioned at operating system layer, described CIR.sys file is for realizing handling the self-defining file of infrared signal, described LCM.sys file is to handle and the self-defining file of control display message for realizing, this CIR.sys file and LCM.sys file all are loaded in the operating system layer; Audio-visual playing program of Windows and windows registry then are positioned at application layer.The user is behind telepilot 3 input response commands, operating system layer will see through application layer and revise relevant information in the windows registry, thereby make the audio-visual playing program of Windows can respond user-dependent input command, for example orders such as song selection and volume control.
As shown in Figure 6, be the infrared signal reception process flow diagram of the audio-visual playing program remote control thereof of the present invention.Telepilot 3 produces infrared signal according to user's input of control commands, by being temporary in the system information tabulation behind the main frame 1 reception processing infrared signal, so that the audio-visual playing program of visit Windows.At first, central processing unit 11 configuration I/O can use reception CIR signal port, and store the executing state of primary thread, and described primary thread is meant the program (step S101) that the Windows system is carrying out.Central processing unit 11 configurations can receive the register address of CIR signal, and select to receive CIR signal (step S102) by CIR signal processing module 14 after the interrupt mode.CIR signal processing module 14 is modulated to CIR information with the CIR signal, and central processing unit 11 starts first in first out (FIFO) service thread transmission CIR information (step S103).Then central processing unit 11 is removed fifo queue, and the address that enables of register all is changed to " 1 ", register name in the present embodiment is called register REXN, register REXEND and register RXACT, and it is that CIR signal processing module 14 prepares to receive interrupting information (step S104).CIR signal processing module 14 is waited for and is received interrupting information (step S105).CIR signal processing module 14 judges whether interrupting information is CIR information (step S106).If this interrupting information is not a CIR information, then CIR signal processing module 14 continues to wait for interrupting information (step S105); If this interrupting information is a CIR information, then central processing unit 11 reads this CIR information storage (step S107) in internal memory.Judge whether CIR signal processing module 14 continues to receive CIR information (step S108).If continue to receive CIR information, then turn to step S105; If no longer receive CIR information, then central processing unit configuration I/O signal port is a down state, and recovers the executing state (step S109) of primary thread, indicates this place and is label A place.
As shown in Figure 7, be that the infrared signal that utilizes of the audio-visual playing program remote control thereof of the present invention starts the method flow diagram of audio-visual playing program.The user starts Windows operating system (OS) (step S201).Os starting Audio DJ service thread, described Audio DJ service thread are that the application program by a self-defining in advance monitoring Audio DJ information is started, and it is present under the Windows os starting state (step S202) always.From label A, central processing unit reads CIR information (step S203) from internal memory, Audio DJ message processing module 15 is converted into Audio DJ information (step S204) with CIR information, and judge whether the information that receives is Audio DJ information (Windows also has out of Memory carrying out down) (step S205), if the information that receives is not Audio DJ information, then Audio DJ service thread enters sleep (Sleep) state (step S213); If the information that receives is Audio DJ information, then Audio DJ message processing module 15 is put into system information formation medium pending (step S206) with this Audio DJ information.Then operating system loading hook () function utilizes this hook () function to read information from the system information formation, and this hook () function is a function (step S207) that is used to obtain Audio DJ information for Audio DJ service thread.Central processing unit 11 judges whether Audio DJ information (step S208) is arranged in the system information formation.If do not have Audio DJ information in the system information formation, then Audio DJ service thread enters sleep (Sleep) state (step S213); If in the system information formation Audio DJ information is arranged, then Audio DJ message processing module 15 judges whether to be Audio DJ ending message (step S209).If this Audio DJ information is ending message (being the end broadcast information of Windows MediaPlayer), then finish Audio DJ service thread; If this AudioDJ information is not ending message, for example the broadcast start information of Windows Media Player, song are selected and information such as broadcast or time-out song, after then obtaining this Audio DJ information, and pass through south bridge 12 and transmit these Audio DJ information to the audio-visual playing program of Windows (Media Player) (step S210) by hook () function.Media Player responds this Audio DJ information and carries out audio-visual broadcast (step S211), after this audio-visual broadcast information is back to 16 processing of LCD display control module by Audio DJ message processing module 15, on LCD display panel 10, show audio-visual broadcast information, for example information (step S212) such as broadcast state, reproduction time and volume control.
Claims (12)
1. audio-visual playing program telechirics, the broadcast situation that it comes audio-visual playing program under the control operation system by a telepilot, and on the LCD display panel, show audio-visual broadcast information, it is characterized in that this system comprises:
Telepilot, it is used to import audio-visual Play Control order, and produces an infrared signal according to this control command;
Main frame, this main frame comprises: central processing unit, south bridge, I/O chipset, infrared signal processing module, Audio DJ message processing module, LCD display control module and LCD display panel; Wherein
The infrared signal processing module, it is used to receive described infrared signal, and infrared ray information is modulated and be encoded into to this infrared signal;
Audio DJ message processing module, it is to be used for above-mentioned infrared ray information is converted into Audio DJ information, and this Audio DJ information passed to audio-visual playing program under the operating system, and audio-visual broadcast information is passed to described LCD display control module;
The LCD display control module, it is to be used to receive audio-visual broadcast information, and this audio-visual broadcast information of control shows on the LCD display panel.
2. audio-visual playing program telechirics as claimed in claim 1 is characterized in that, described telepilot comprises the ON/OFF key, increases volume key, Att key, song fast forward button, song advance key, song back spacer and seven function keys of time-out/play button.
3. audio-visual playing program telechirics as claimed in claim 1 is characterized in that, described LCD display panel is to be positioned on the main frame front panel, and it is to be used to show audio-visual broadcast information.
4. audio-visual playing program telechirics as claimed in claim 1 is characterized in that, the described signal that is produced by telepilot can also be a kind of radiofrequency signal.
5. audio-visual playing program telechirics as claimed in claim 1 is characterized in that, described audio-visual playing program can be the Media Player player under the operating system, or other is loaded into the audio-visual playout software under the operating system.
6. audio-visual playing program remote control thereof, it is by the broadcast situation of audio-visual playing program under the telepilot operational computations machine operation system, and shows audio-visual broadcast information on the LCD display panel, it is characterized in that this method comprises the steps:
Audio-visual control command by the audio-visual playing program of telepilot input operation;
Telepilot produces an audio-visual control signal according to this control command;
Receive described audio-visual control signal, and should audio-visual control signal modulate and be encoded to a kind of audio-visual control information;
Described audio-visual control information is converted into an Audio DJ control information;
Transmit the audio-visual playing program of described Audio DJ control information to the operating system;
Audio-visual playing program responds this Audio DJ control information and carries out audio-visual broadcast;
Handle the audio-visual broadcast information of audio-visual playing program under the operating system;
On the LCD display panel, show described audio-visual broadcast information.
7. audio-visual playing program remote control thereof as claimed in claim 6; it is characterized in that, described control command by the audio-visual playing program of telepilot input operation comprise open or close audio-visual playing program, increase volume, reduce volume, song F.F., song are advanced, song retreats and suspend or play seven control commands of audio-visual playing program.
8. audio-visual playing program remote control thereof as claimed in claim 6 is characterized in that, the control signal that described telepilot produces is infrared signal or a kind of radiofrequency signal.
9. audio-visual playing program remote control thereof as claimed in claim 6 is characterized in that, and is described with control signal modulation and be encoded into the also following step that comprises of audio-visual control information:
It is upstate that configuration I/O makes audio-visual control signal port, and stores the executing state of primary thread;
Configuration receives the register address of audio-visual control signal, and selects interrupt mode to receive audio-visual control signal;
Audio-visual control information is modulated and be encoded to audio-visual control signal;
Start the control information of first in first out (FIFO) service thread transmitting audio-video;
Remove fifo queue, and the address that enables of corresponding register is changed to " 1 ";
Wait for and receive interrupting information;
Judge whether interrupting information is audio-visual control information;
If this interrupting information is not audio-visual control information, then continue to wait for interrupting information;
If this interrupting information is audio-visual control information, then reads this audio-visual control information and be stored in the described fifo queue;
Whether continuation receives audio-visual control information;
If continue to receive audio-visual control information, then wait for receiving audio-visual control information;
If no longer receive audio-visual control information, then disposing I/O reception control signal port is down state, and recovers the executing state of primary thread.
10. audio-visual playing program remote control thereof as claimed in claim 6 is characterized in that, describedly audio-visual control information is converted into Audio DJ control information comprises the steps:
Start the operating system;
Start Audio DJ service thread;
Audio DJ service thread is converted into Audio DJ control information with audio-visual control information, and a system information formation is put in this Audio DJ control information;
Operating system loading one hook () function;
Hook () function obtains Audio DJ control information from described system information formation, and Audio DJ control information is passed to audio-visual playing program under the operating system.
11. audio-visual playing program remote control thereof as claimed in claim 6 is characterized in that, described audio-visual playing program is to can be Media Player player under the operating system or other to be loaded into audio-visual playout software under the operating system.
12. audio-visual playing program remote control thereof as claimed in claim 6 is characterized in that described audio-visual broadcast information comprises audio-visual broadcast state, reproduction time and volume control information.
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