CN100390716C - One way multiple channel communication system and method - Google Patents
One way multiple channel communication system and method Download PDFInfo
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- CN100390716C CN100390716C CNB2005100851635A CN200510085163A CN100390716C CN 100390716 C CN100390716 C CN 100390716C CN B2005100851635 A CNB2005100851635 A CN B2005100851635A CN 200510085163 A CN200510085163 A CN 200510085163A CN 100390716 C CN100390716 C CN 100390716C
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Abstract
The present invention relates to communication method and system of one computer with several radio input devices with the input devices in variable frequency channels under one-way communication framework. The computer system unit has receiver with multiple frequency channel receiving capacity, each input device has emitter to emit signal in different preset frequency channel, and the receiver has memory to record the frequency channels the input devices use and can receive the signals of different frequency channels successively. When the user switches the input signal frequency channels of some input device, the receiver may be started to enter into learning mode while the input device is started to transmit recognizing code and frequency channel data after the switching via the shared frequency channel, so that the receiver can receive input signal in the renewed frequency channel data.
Description
Technical field
The present invention relates to a kind of communicating wireless signals technology of computer peripheral device, relate in particular to a kind of one way multiple channel communication system and method that comprises the computing machine of a plurality of radio input devices.
Background technology
The importance of computing machine institute's figure in society now need not superfluous words.Along with making rapid progress of computer technology, also variation more of input media in order to cooperate various particular demands, except the most basic keyboard and mouse, digiboard (digital tablet), operating rod (joystick), gamepad (gamepad), telepilot and 3D indicator device (3D pointingdevice) or the like are arranged more.These numerous input medias all are to be connected to main frame by wire rod in the past, and each input media all takies an input/output end port.But input/output end port is the limited resources of computing machine, can't unrestrictedly use for numerous input medias.In addition, wire rod messy and be entangled with also and can bring inconvenience, and also user's operation can be subjected to pining down of wire rod and inconvenience to some extent.
Though the radio input device of computing machine is very general at present, it still has less-than-ideal place.Though being seen on the market at present integrated radio input device can be shared receiver for a plurality of input media transmitters (as wireless mouse and Wireless Keyboard), as United States Patent (USP) the 5th, 854, No. 621 disclosed, be between its transmitter and the receiver one-way communication (promptly fix and transmit to receiver) by transmitter, be aided with simple identification code again, can reach of communication and the identification of many transmitters single collector.But its transmitter quantity still has very big restriction, and as described above ' No. 621 United States Patent (USP) the 2nd hurdle the 51st to 52 row are described, only can provide two kinds of transmitters (input media) to share a receiver, and are still not enough on using.In addition, ' No. 621 United States Patent (USP) is when using two input medias, and two input medias must use same channel, and does not allow switching channels (the 9th hurdle the 26th to 29 row).Even if do not consider two input medias because of sharing the interference problem that channel certainly existed, but disturbed by outside noise and can't use the time, the user also can't switching channels at this channel.
Use the occasion of more input media just can deal with problems than complicated technology at needs, as United States Patent (USP) the 5th, 881, No. 366, this application discloses with two-way communication or complicated identification code coding techniques and has solved the problem that many input medias are shared receiver.But this solution not only can increase manufacturing cost, and, a plurality of radio input devices in the single computer systems communicate because of all using same wireless channel, like this, when intrasystem radio input device quantity is many more, it is also just serious more with the degree of phase mutual interference between the rf wave that same channel was sent.But this problem is not comprised the prior art of aforementioned two patented claims and is solved.
In addition, (for example office, network coffee shop and library) is with the adjacent setting of a plurality of computer systems in many computer utility occasions, is separated by between the computer system approximately only about one meter.But, generally use the communication range of the radio input device that radio frequency communicates to be at least 1.5 meters, the wireless receiver that therefore belongs to a certain computer system very likely receives the electric wave signal that wireless launcher sent that belongs to other contiguous computing machine.Therefore for the employed radio input device of computer system, system in and system outer device identification with disturb to prevent it all is necessary consideration.But the used radio input device of present being seen computing machine does not also have a kind of can comprehensively and economically addressing the above problem.
Summary of the invention
The invention provides a kind of method of wireless communication and device thereof, make computing machine that a plurality of radio input devices can be set, and share single receiver accordingly.Input media transmits input signal to receiver by different channel, and the input signal that each input media produces can be discerned and receive to receiver, and can upgrade channel data by mode of learning behind user's switching channels.Computing machine can be any information handling system of being controlled by microprocessor, but refers in particular to personal computer, workstation, personal digital assistant and game console (game console) etc.Input media also can be any form, for example mouse, keyboard, rocking bar, digiboard, Trackpad (touchpad) and gamepad etc.Computing machine not only can be provided with the input media of number of different types, and one of them of input media as the aforementioned also can be provided with the input media of a plurality of same types, as two mouses and/or three keyboards.
The present invention is a kind of lower powered twireless radio-frequency communication method, and it adopts the one-way communication pattern, at each radio input device place transmitter is set, and in the main frame side receiver is set.The different wireless communication channel of the default use of each radio input device, the input signal that each input media is launched all is preced with the identification code that particular preset is arranged respectively.Receiver is provided with internal memory, to write down employed channel of each input media and identification code, receiver can sequentially receive the input signal of each channel in view of the above, and when the user is switched the input signal channel of a certain input media, can start receiver by the user and enter mode of learning, open moving input media by share its identification code of channel transmission and switch after channel data to receiver, receiver can be according to the channel data receiving inputted signal after the renewal.In addition, the wireless signal that is received is discerned, determined that signal whether from intrasystem input media, can carry out subsequent treatment to this input signal by identification code.
One way multiple channel communication system, described system is used to comprise the computing machine of a plurality of input medias, described system comprises:
At least two input medias, in described at least two input medias each includes transmitter, the input signal that each described transmitter uses different wireless channel emissions to be produced by described input media, when the user operates one of them of described input media, a plurality of identical input signals of channel consecutive periods ground emission that operated described input media uses with described input media in a time interval;
Receiver, it functionally is connected in described main frame, described receiver is the cycle with the Preset Time, being undertaken once by preset order seriatim to the employed channel of each described input media in the described cycle, order receives, and periodically repeat described order, described input signal is received by described receiver, it is characterized in that, this input media further comprises the shared channel that can transmit the renewal channel data of described input media after switching, and described shared channel is to be different to transmit the used communication channel of described input signal.
Fundamental purpose of the present invention provides communication means and device thereof between a kind of radio input device and the main frame, and a plurality of radio input devices can be set, and shares a receiver accordingly.
Another object of the present invention provides a kind of wireless communications method and device thereof that uses a plurality of different channels simultaneously.
Another purpose of the present invention provides a kind of one-way communication method and device thereof that uses radiofrequency signal.
Description of drawings
Fig. 1 represents the connection status between main frame and a plurality of radio input device;
Fig. 2 is a channel definition list of the present invention;
Fig. 3 shows the channel transfer sequence pattern of each input media of the present invention;
Fig. 4 represents the syntagmatic of input signal of the present invention and identification code;
Fig. 5 is the process flow diagram of communication means of the present invention;
Fig. 6 represents the circuit block diagram of input media of the present invention;
Fig. 7 represents the circuit block diagram of receiver of the present invention.
In the accompanying drawing, the list of parts of each label representative is as follows:
1-main frame 2-receiver
21-receiving antenna 22-second radio frequency amplifier
23-second frequency compositor 24-second microprocessor
25-input/output interface 26-second internal memory
27-mode of learning switch 31-33-input media
341-inductor 342-keyswitch
343-first microprocessor 344-channel change-over switch
345-pairing switch 346-first internal memory
347-first frequency compositor 348-first radio frequency amplifier
349-emitting antenna 4-input signal
The 5-identification code
Embodiment
In order to make those skilled in the art further understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, accompanying drawing only provide with reference to and usefulness is described, be not to be used for limiting the present invention.
At first consult Fig. 1, as can be seen, a plurality of radio input device 31-33 are connected in main frame 1 by radio communication, and each input media 31-33 is respectively equipped with less radio-frequency (RF) transmitter, and 1 of main frame is connected with the receiver 2 corresponding to the transmitter of input media 31-33.Input media 31-33 can be the combination of all kinds and quantity, and embodiment as shown in Figure 1 installs mouse 31, keyboard 32 and telepilot 33, totally three input medias at main frame 1.
To receiver 2 emission input signals, modulate in the mode of frequency shift keying (FSK) by this input signal with the radiofrequency signal uniaxially for the transmitter of input media 31-33 of the present invention.If as carrier frequency, frequency range that then can 5MHz is a channel spacing, to define dozens of even up to a hundred communication channels with the frequency range of 2.4GHz.Be preferred channel allocation as shown in Figure 2, define 32 channels in this table altogether, also can increase and decrease as required certainly.
The initial use of each input media 31-33 is channel predetermined, uses first channel as mouse 31, and keyboard 32 uses second channel, and telepilot 33 uses the 3rd channel.Certainly above-mentioned use channel also can arbitrarily change.Be provided with internal memory (back will be described in detail) in the receiver 2, wherein store the initial channel predetermined data of using of each input media 31-33, make the receiver 2 can be according to its receiving channels of this data setting.
When a certain input media 31-33 was operated by the user, it produced input signal accordingly by transmitter in default time interval, and transmits one group of a plurality of cyclical signal continuously.Receiver 2 receives these signals with periodic frequency hop sequence ground.With aforesaid channel order is example, and the internal memory in the receiver 2 has had channel predetermined data, promptly can first channel, the order of second channel and the 3rd channel carries out order and receive, go round and begin again.The time interval of aforementioned input signal emission preferably approximates one and receives the round-robin cycle (promptly finishing the reception circulation of three channels), be received device 2 in the cycle period and is received to guarantee that input signal that each input media 31-33 sent all can be in real time receives at one.Experimental result according to inventor's gained, reception for the signal of single input media 31-33 receives more than 17 times if can reach in one second, it is sluggish or interrupted that the user just can not feel, just must be below 59ms for the receiving cycle (be and receive the round-robin cycle) of same channel.With the embodiment of three input media 31-33 shown in Figure 1, if the receiving cycle of each channel below 19.67ms (59 ÷ 3=19.67), can make one to receive the upper limit that cycle period is lower than aforesaid 59ms.And in the system that is provided with four input medias, then only need the receiving cycle of each channel is set in below the 14.75ms (59 ÷ 4=14.75), can satisfy required.
In addition, for the interference problem of other wireless device use outside the resolution system with intrasystem input media 31-33 same channel, the present invention also provides the channel handoff functionality.Channel switching way can preferably be used preset order, and promptly each input media 31-33 chooses a plurality of available channels respectively from the channel table of Fig. 2, and according to certain series arrangement.As shown in Figure 3 be a preferred channel preset table.The selected channel sequence of all types of input media 31-33 is different fully, wherein also not have shared channel.For example mouse 31 original first channels that use are used the 4th channel instead after pushing a channel change-over switch (will be described hereinafter), push and once then use the 7th channel instead; And keyboard 32 original second channels that use are used the 5th channel instead after pushing a channel change-over switch, push and once then use the 8th channel instead, carry out order according to predefined procedure and switch.Certainly, channel preset table shown in Figure 3 is not unalterable, but can change arbitrarily, as long as each channel sequence is not reused the situation of same channel.Another not preferred but still feasible switching mode promptly, randomly with the random number way switching channels, and is not to switch according to particular order.But this mode still has the possibility (though this possibility is not high) that two input medias use same channel.Running into channel when overlapping, only need switch once or twice channel again and can avoid a kind of feasible mode of therefore still can yet be regarded as.
Because transmitter-receiver of the present invention is to adopting the one-way communication framework, but promptly only input media 31-33 unidirectional emission signal and can't reversely communicate by letter to receiver 2.Therefore carry out after channel switches at input media 31-33, the receiving channels that a kind of mechanism makes receiver 2 must be set also produce corresponding the switching, just can make receiver 2 correctly receive the input signal that each input media 31-33 is launched.This mechanism is that mode of learning switch (will be described in detail later) is set at receiver 2 places, enter mode of learning to start receiver 2, in addition, pairing switch (pairing switch) (will be described in detail later) is set at each input media 31-33 place, enters pairing mode and launch its channel data to start input media 31-33.When the channel of the employed transmission input signal of input media 31-33 after switching, receiver 2 can't receive the input signal that input media 31-33 is transmitted again, this moment, the user can make receiver 2 enter mode of learning by the operate learning mode switch, preferably can show this mode state by modulating signal.Under mode of learning, receiver 2 carries out signal with default shared channel and receives, operate the pairing switch of the input media 31-33 of switching channels this moment, make it via the channel data of sharing after channel transmits its switching, after receiver 2 receives the channel data of this renewal, it is stored in the internal memory, and after mode of learning finished, the channel order ground that can use instead automatically after the renewal carried out the reception of input signal.As in the embodiment shown in fig. 1, receiver 2 is former to receive the input signal that three kinds of input media 31-33 are transmitted respectively with first, second and third channel, if mouse 31 is used the 4th channel instead through switching, then behind the channel data of receiver 2 after obtaining renewal via mode of learning, promptly correspondence is used the 4th, two, three channels instead and is received.
Aforesaid shared channel be only in mode of learning in order to transmit channel data, be different from order to transmit the channel (channel among Fig. 2) of input signal, and all input media 31-33 all use identical shared channel, so receiver 2 can receive the renewal channel data that arbitrary input media 31-33 is transmitted in mode of learning.
Consult Fig. 4 below, input signal that each input media 31-33 of the present invention is transmitted and channel data all can be titled with the identification codes 5 that is specific to each device, whether differentiate signals that it received from intrasystem input media 31-33 for receiver 2, and under mode of learning, which input media 31-33 receiver 2 can learn its renewal channel data that receives from, so just can finish correct correspondence and upgrade.
Shown in Figure 5 is the process flow diagram of the inventive method.At first, receiver 2 receives the input signal (S1) that each input media 31-33 is transmitted with default channel order, if the input signal that all input media 31-33 are transmitted all can be received device 2 and normally receive, 2 of receivers are proceeded sequentially to receive according to existing channel order.When arbitrary input media 31-33 receives because of switching channels makes its input signal that transmits can't be received device 2 (S2), promptly thereby the mode of learning switch of operating receiver 2 by the user enters mode of learning (S3), again by user operation can't received input media 31-33 the pairing switch, make input media 31-33 enter pairing mode, to transmit the channel data (S4) that upgrades by sharing channel.After receiver 2 received the renewal channel data, the corresponding channel data (S5) that upgrades finished learning state at last in depositing within it.At this moment, receiver 2 sequentially receives with the channel order the upgraded input signal to each input media 31-33.
Above-mentioned communication means can be implemented by the circuit block diagram of Fig. 6 and Fig. 7.Shown in Figure 6 is the typical circuit of input media 31-33, and it controls the operation of other peripheral circuit as control center with first microprocessor 343.Input media 31-33 typically is provided with the keyswitch (key switch) 342 for user's input instruction, the inductor 341 that can respond to user's action can be set in addition, for example mouse 31 and digiboard etc.The command signal that first microprocessor 343 is transmitted according to keyswitch 342 and/or inductor 341 is converted into the input signal of main frame 1 acceptable form; Non-volatile first internal memory 346 is in order to store data such as employed channel of input media 31-33 and identification code 5, first microprocessor 343 is encoded to input signal 4 according to these data, and control first frequency compositor 347 modulated input signal 4 with the channel of correspondence, again via first radio frequency amplifier 348 and emitting antenna 349 with its emission.Channel change-over switch 344 and pairing switch 345 are electrically connected on first microprocessor 343, respectively for user's operation, communicate the switching of channel and the switching of pairing mode (latter is used for transmitting upgrading channel data) under mode of learning, be stored in immediately in first internal memory 346 via channel change-over switch 344 channel data after changing.
Shown in Figure 7 is the typical circuit of receiver 2, and it as control center, and stores data such as employed channel of each input media 31-33 and identification code 5 in non-volatile second internal memory 26 that second little reason device 24 links to each other with second microprocessor 24.Under normal accepting state (being non-mode of learning), second microprocessor 24 carries out frequency hop sequence according to these Data Control second frequency compositors 23 and receives and demodulation, input signal via each received channel of receiving antenna 21 and second radio frequency amplifier 22 can correctly be received, be sent to second microprocessor then and carry out necessary sources discrimination (passing through identification code) and signal Processing, afterwards, via input/output interface 25 input signal that receives is sent to main frame 1 again with the interface compatibility of main frame 1.The mode of learning switch 27 that is electrically connected on second microprocessor 24 switches to the learning state of receiver 2, and when entering learning state, second microprocessor, 24 control second frequency compositors 23 receive the renewal channel data to share channel.
The above only is the preferred embodiments of the present invention, be not so promptly limit claim of the present invention, the equivalent transformation that every utilization instructions of the present invention and accompanying drawing content are done, or directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the present invention.
Claims (15)
1. one way multiple channel communication means, described method is used to comprise the computing machine of a plurality of input medias, described a plurality of input media respectively includes transmitter, and described computing machine includes receiver in order to receive the electric wave signal from each described input media, and described method comprises the following steps:
Set each described input media and use different default communication channels;
When the user operated one of them of described input media, operated described input media was launched a plurality of identical input signals with its employed channel consecutive periods ground in a time interval;
Described receiver is the cycle with the default time, in the described cycle the employed channel of each described input media is carried out once order reception by preset order seriatim, and periodically repeats described order; It is characterized in that,
The employed described default communication channel of described input media is switchable;
Described receiver receives the renewal channel data of described input media after switching with default shared channel and matches.
2. the method for claim 1, wherein the Preset Time of described receiver equals to launch the time interval of described input signal.
3. the method for claim 1, wherein described receiver is not more than 59ms for the receiving cycle of same channel.
4. the input signal of the method for claim 1, wherein being launched by each described input media is preced with respectively and is belonged to the proprietary identification code of each described input media, discerns the source of described input signal for described receiver.
5. method as claimed in claim 4, wherein, described identification code is changeless.
6. method as claimed in claim 5, wherein, described pairing specifically comprises the following steps:
Provide mode of learning on described receiver, described mode of learning is to make described receiver with default shared channel received signal;
Provide pairing mode on described input media, described pairing mode is to make described input media transmit the renewal channel data of described input media after switching with described shared channel;
Described receiver carries out order with the channel order of upgrading and receives after receiving described renewal channel data.
7. method as claimed in claim 6, wherein, the described renewal channel data hat that is transmitted by described input media has identification code.
8. method as claimed in claim 6, wherein, described shared channel is to be different to transmit the used communication channel of described input signal.
9. one way multiple channel communication system, described system is used to comprise the computing machine of a plurality of input medias, described system comprises:
At least two input medias, in described at least two input medias each includes transmitter, the input signal that each described transmitter uses different wireless channel emissions to be produced by described input media, when the user operates one of them of described input media, a plurality of identical input signals of channel consecutive periods ground emission that operated described input media uses with described input media in a time interval;
Receiver, it functionally is connected in described main frame, described receiver is the cycle with the Preset Time, being undertaken once by preset order seriatim to the employed channel of each described input media in the described cycle, order receives, and periodically repeat described order, described input signal is received by described receiver, it is characterized in that, this input media further comprises the shared channel that can transmit the renewal channel data of described input media after switching, and described shared channel is to be different to transmit the used communication channel of described input signal.
10. system as claimed in claim 9, wherein, described transmitter and described receiver use rf channel.
11. system as claimed in claim 9, wherein, the Preset Time of described receiver equals to launch the time interval of described input signal.
12. system as claimed in claim 9, wherein, described receiver is not more than 59ms for the receiving cycle of same channel.
13. system as claimed in claim 9, wherein, the input signal of being launched by each described input media/transmitter is preced with respectively and is belonged to the proprietary identification code of each described input media, discerns the source of described input signal for described receiver.
14. system as claimed in claim 13, wherein, described identification code is changeless.
15. system as claimed in claim 9, wherein, described input media further includes:
The channel change-over switch, it can switch described input media in order to transmit the channel of described input signal;
The pairing switch, it makes described input media enter pairing mode, with the default channel data of shared channel transmission after switching,
And described receiver further includes:
The mode of learning switch, it makes described receiver enter mode of learning, with the renewal channel data of described shared channel reception from described input media.
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| CNB2005100851635A CN100390716C (en) | 2005-07-21 | 2005-07-21 | One way multiple channel communication system and method |
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| CNB2005100851635A CN100390716C (en) | 2005-07-21 | 2005-07-21 | One way multiple channel communication system and method |
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| CN100390716C true CN100390716C (en) | 2008-05-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102073616A (en) * | 2009-11-23 | 2011-05-25 | 仁宝电脑工业股份有限公司 | Personal computer system and operation method thereof for multiple outputs |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101650606B (en) * | 2008-08-12 | 2012-01-25 | 金宝电子工业股份有限公司 | Wireless input device and channel matching method thereof |
| CN105259989B (en) * | 2015-11-18 | 2019-01-29 | 合肥宝龙达信息技术有限公司 | A kind of method of the compatible multi-source of notebook memory on board |
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| US20030084210A1 (en) * | 2001-10-30 | 2003-05-01 | Wu Kun Chan | Wireless receiving device and method jointly used by computer peripherals |
| CN2549655Y (en) * | 2002-05-22 | 2003-05-07 | 派登科技股份有限公司 | Wireless device with single receiving circuit |
| US20040022329A1 (en) * | 2002-06-20 | 2004-02-05 | Ching-Lieh Sun | Single chip CMOS RF receiver included PLL therein |
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| CN1393753A (en) * | 2001-07-02 | 2003-01-29 | 英群企业股份有限公司 | Multi-channel wireless input device |
| US20030084210A1 (en) * | 2001-10-30 | 2003-05-01 | Wu Kun Chan | Wireless receiving device and method jointly used by computer peripherals |
| CN2549655Y (en) * | 2002-05-22 | 2003-05-07 | 派登科技股份有限公司 | Wireless device with single receiving circuit |
| US20040022329A1 (en) * | 2002-06-20 | 2004-02-05 | Ching-Lieh Sun | Single chip CMOS RF receiver included PLL therein |
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| CN102073616A (en) * | 2009-11-23 | 2011-05-25 | 仁宝电脑工业股份有限公司 | Personal computer system and operation method thereof for multiple outputs |
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