CN101488040A - Electricity-saving wireless input apparatus and system - Google Patents
Electricity-saving wireless input apparatus and system Download PDFInfo
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- CN101488040A CN101488040A CNA2008100060172A CN200810006017A CN101488040A CN 101488040 A CN101488040 A CN 101488040A CN A2008100060172 A CNA2008100060172 A CN A2008100060172A CN 200810006017 A CN200810006017 A CN 200810006017A CN 101488040 A CN101488040 A CN 101488040A
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Abstract
The invention provides a power-saving wireless input device and a system. The wireless input device comprises an antenna, a radio frequency identification transponder (RFID transponder), an energy storage unit and an induction unit, wherein the RFID responder receives an alternating current signal through the antenna and converts the alternating current signal into a direct current signal; the energy storage unit receives the direct current signal for charging; the induction unit uses electric energy provided by the energy storage unit, and generates an input signal to the RFID transponder by induction; the RFID transponder generates a request signal by demodulation according to the alternating signal, executes load modulation according to the input signal so as to generate a return signal responding to the request signal, and transmits the return signal through the antenna.
Description
Technical field
The invention relates to wireless input technology, but refer to a kind of radio input device and system of power saving especially.
Background technology
Radio input device such as wireless mouse and Wireless Keyboard etc., be present computing machine the input tool that generally uses.Fig. 1 is the Organization Chart of existing radio input device, and wherein, radio input device 13 is to be used in data are inputed to main frame 11.Radio input device 13 comprises a radiofrequency launcher (RFtransmitter) 131, a sensing unit 132 and a battery 133.Sensing unit 132 with the input signal (as mouse input signal or keyboard input signal) responded to via radiofrequency launcher 131 modulations after, be emitted to a radio frequency receiver (RF receiver) 12, be resent to main frame 11.And radiofrequency launcher 131 and the required electric energy of sensing unit 132 runnings are then provided by battery 133.
Yet because radiofrequency launcher 131 power consumption are big, battery 133 will soon not have electricity, and needs often also to change, and so not only not environmental protection also can cause the inconvenience in the use.
Summary of the invention
In view of this, a purpose of the present invention is to provide a kind of radio input device and relevant wireless input system, compares in background technology to reach power saving and effect easy to use.
Another object of the present invention is to provide a kind of radio input device and relevant wireless input system, compares in background technology and can reduce manufacturing cost.
The present invention discloses a kind of radio input device, and it comprises: an antenna; One radio-frequency (RF) identification (RadioFrequency Identification is called for short RFID) is responded device (transponder), receives an AC signal via described antenna; One power supply unit is coupled to described radio-frequency (RF) identification and responds device; And a sensing unit, use the electric energy that power supply unit provided, induction produces an input signal to the radio-frequency (RF) identification responsor.The radio-frequency (RF) identification responsor produces one according to described AC signal demodulation and requires signal, and carries out load modulation (load modulation) according to described input signal, to produce the described return signal that requires signal of response, sends out via antenna.
The present invention discloses a kind of wireless input system in addition, and it comprises: an electronic installation; One radio-frequency (RF) transceiver (RFtransceiver) is coupled to described electronic installation, in order to launch first radiofrequency signal; And a radio input device, receive first radiofrequency signal producing electric energy, and use the electric energy that is produced, produce the second corresponding radiofrequency signal according to an input signal modulation.Radio-frequency (RF) transceiver receives second radiofrequency signal, and second radiofrequency signal is demodulated into a fundamental frequency signal, to be sent to electronic installation.
Description of drawings
Fig. 1 is the Organization Chart of existing radio input device;
Fig. 2 is the calcspar of an embodiment of wireless input system of the present invention;
Fig. 3 is the calcspar of an embodiment of the wireless input system of Fig. 2;
Fig. 4 is the calcspar of a preferred embodiment of the radio input device of Fig. 3;
Fig. 5 is the calcspar of another preferred embodiment of the radio input device of Fig. 3;
Fig. 6 is the calcspar of a preferred embodiment of the wireless input system of Fig. 2;
Fig. 7 is the calcspar of another preferred embodiment of the wireless input system of Fig. 2.
Description of reference numerals: 11,21-main frame; The 12-radio frequency receiver; 13,23-radio input device; The 131-radiofrequency launcher; 132,234-sensing unit; 133,236-battery; The wireless input system of 20-; The 22-radio-frequency (RF) transceiver; The 221-coil antenna; The 231-antenna; The 232-radio-frequency (RF) identification is responded device; The 2321-rectification circuit; The 2322-demodulator circuit; The 2323-control circuit; The 2324-modulation circuit; 2325-mnemon; The 233-power supply unit; The 235-Storage Unit; 237-rectification Storage Unit; The 2371-rectification circuit; The 2372-energy storage circuit; The 24-radio frequency indentification transceiver.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
Fig. 2 is the calcspar of an embodiment of wireless input system of the present invention, and wherein, wireless input system 20 comprises an electronic installation (for example main frame) 21, one radio-frequency (RF) transceiver 22 and a radio input device 23.Radio input device 23 can be wireless mouse, Wireless Keyboard or has sensing apparatus of abilities such as sensing temperature, humidity, pressure, pulse wave etc.Radio-frequency (RF) transceiver 22 can be coupled to main frame 21 via transmission interface (as USB, RS232 etc.), or in build in the main frame 21, and can launch first radiofrequency signal to radio input device 23; 23 of radio input devices utilize first radiofrequency signal to produce electric energy, and use the electric energy produced, produce the second corresponding radiofrequency signal according to an input signal (sensing signal that is produced as the input signal of the input signal of mouse, keyboard or sensing temperature, humidity, pressure, pulse wave etc.) modulation, be emitted to radio-frequency (RF) transceiver 22.Radio-frequency (RF) transceiver 22 can be demodulated into a fundamental frequency signal with second radiofrequency signal, to be sent to main frame 21.Therefore, can comprise the device of passive type (passive) in the radio input device 23, not need power autonomous (as battery), and can produce electric energy by the wireless induction mode.So, can reach the double effects of power saving and (as not needing also to change battery) easy to use.
Fig. 3 is the calcspar of an embodiment of the wireless input system 20 of Fig. 2, wherein, radio-frequency (RF) transceiver 22 is radio frequency indentification transceivers (RFID transceiver) 24, and radio input device 23 comprises an antenna 231, a radio-frequency (RF) identification is responded device (RFID transponder) 232, one power supply unit 233 and a sensing unit 234.In this embodiment, first radiofrequency signal is one modulating signal to be exchanged AC signal on the carrier wave at a radio.Radio frequency indentification transceiver 24 comprises a coil antenna 221, to produce an ac magnetic field; 231 described ac magnetic fields of induction of the antenna of radio input device 23 are to receive first radiofrequency signal.In another embodiment, radio frequency indentification transceiver 24 can produce the alternating current magnetic wave, and 231 on antenna receives first radiofrequency signal via described alternating current magnetic wave.
The electric energy that sensing unit 234 can use power supply unit 233 to be provided, induction produces aforesaid input signal, delivers to radio-frequency (RF) identification responsor 232.Radio-frequency (RF) identification is responded device 232 with the first radiofrequency signal demodulation and removal carrier wave, and the fundamental frequency that produces radio frequency indentification transceiver 24 requires signal (the described signal that requires is that expression radio frequency indentification transceiver 24 requires radio-frequency (RF) identification responsor 232 its data of depositing of passback), and the input signal that is produced according to sensing unit 234 is carried out load modulation (load modulation), to produce the described return signal that requires reflective (backscatter) of signal of response, be sent to radio frequency indentification transceiver 24 via antenna 231 and antenna 221.In the embodiments of figure 3, radio-frequency (RF) identification responsor 232 is except having radio frequency interface with from antenna 231 transmitting-receiving radiofrequency signals, also has another transmission interface, can be from sensing unit 234 receiving inputted signals, the required electric energy of 234 transmission signals of radio-frequency (RF) identification responsor 232 and sensing unit is then provided by power supply unit 233.Radio-frequency (RF) identification responsor 232 has the two Interface Design of this kind, thereby can be applicable to as input purposes such as wireless mouse or Wireless Keyboards, to reach the power saving effect.
Fig. 4 is the calcspar of a preferred embodiment of the radio input device 23 of Fig. 3, wherein, radio-frequency (RF) identification is responded device 232 and is comprised a rectification circuit 2321, a demodulator circuit 2322, a control circuit 2323, a modulation circuit 2324 and a mnemon 2325, and power supply unit 233 is Storage Units 235, is coupled to described rectification circuit 2321.Rectification circuit 2321 is converted to DC voltage with first radiofrequency signal that antenna 231 is received.Rectification circuit 2321 also comprises a voltage stabilizer (regulator, figure does not show), press in order to producing galvanic current, this stable DC voltage is except can charging to Storage Unit 235, and other circuit in the radiofrequency supplier identification responsor 232 (being demodulator circuit 2322, control circuit 2323, modulation circuit 2324 and mnemon 2325) required electric power of running.Storage Unit 235 can be electric capacity or rechargeable battery etc., its stored electric power except can supply sensing unit 234, also can provide radio-frequency (RF) identification responsor 232 running required electric power.Therefore, radio-frequency (RF) identification responsor 232 has Storage Unit 235 and 2,321 two power sources of rectification circuit, but elasticity is used.For example, when 232 power consumptions of radio-frequency (RF) identification responsor not for a long time, the electric power that can only use rectification circuit 2321 to be provided operates; But when 232 power consumptions of radio-frequency (RF) identification responsor increase, the input signal of handling as needs (by sensing unit 234 generations) increase or and the traffic or the communication distance of 24 of radio frequency indentification transceivers improve, the electric power of deficiency is just provided by Storage Unit 235.One of the advantage of this preferred embodiment, be when radio input device 23 during in inoperation at ordinary times, sustainable reception radio carrier and electric energy is charged to the charging assembly of Storage Unit 235, and when radio input device 23 frequent operations, can obtain sensing unit 234 and radio-frequency (RF) identification by Storage Unit 235 and respond the required electric energy of device 232.
Fig. 5 is the calcspar of another preferred embodiment of the radio input device 23 of Fig. 3, and wherein, power supply unit 233 is batteries 236, uses to radio-frequency (RF) identification responsor 232 and sensing unit 234 so that electric energy to be provided.Radio-frequency (RF) identification responsor 232 is similar to Fig. 4 with the running of sensing unit 234, does not give unnecessary details now.In this preferred embodiment, but the DC voltage that electric energy that radio-frequency (RF) identification responsor 232 elasticity use battery 236 is provided or rectification circuit 2321 are provided operates.
Fig. 6 is the calcspar of a preferred embodiment of the wireless input system 20 of Fig. 2, wherein, radio-frequency (RF) transceiver 22 is radio frequency indentification transceivers 24, and radio input device 23 then comprises antenna 231, radio-frequency (RF) identification is responded device 232, Storage Unit 235, sensing unit 234 and battery 236.The radio input device 23 of Fig. 6 can be considered the combining of radio input device of Fig. 4 and Fig. 5, and also, comprise Storage Unit 235 and 236 two kinds of power supplys of battery simultaneously, and the electric energy of Storage Unit 235 is used at the electric energy of battery 236 preferentially.So, can also reach the double effects of the puzzlement of power saving and reduction dead battery.
Fig. 7 is the calcspar of another preferred embodiment of the wireless input system 20 of Fig. 2, wherein, radio-frequency (RF) transceiver 22 is radio frequency indentification transceivers 24, and radio input device 23 comprises antenna 231, radio-frequency (RF) identification responsor 232, a rectification Storage Unit 237 and sensing unit 234.Rectification Storage Unit 237 is coupled to antenna 231, and comprise a rectification circuit 2371 and an energy storage circuit 2372, can change the interchange carrier wave that antenna 231 receives into DC voltage and store electrical energy, use with sensing unit 234 to supply with radio-frequency (RF) identification responsor 232, energy storage circuit 2372 can be electric capacity or rechargeable battery.Radio-frequency (RF) identification responsor 232 is similar to Fig. 4 with the running of sensing unit 234, does not give unnecessary details now.In addition, in the circuit of Fig. 7, also can generally comprise a battery as shown in Figure 6 in addition, provide electric energy to use, so can increase the elasticity of power supply to radio-frequency (RF) identification responsor 232 and sensing unit 234.
In the embodiment of Fig. 3 to Fig. 7, because the hardware cost of the radio-frequency (RF) identification responsor that radio input device adopted, the radiofrequency launcher that is adopted more than existing radio input device among Fig. 1 is low, therefore compares in background technology, and the present invention can significantly reduce the cost of manufacturer.On the other hand, the power consumption of radio-frequency (RF) identification responsor is low more than radiofrequency launcher also, therefore compares in background technology, and the present invention can significantly extend the life of a cell, and reduces the puzzlement of dead battery.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (16)
1, a kind of radio input device, it is characterized in that: it comprises:
One antenna;
One radio-frequency (RF) identification responsor receives an AC signal via described antenna;
One power supply unit is coupled to described radio-frequency (RF) identification and responds device; And
One sensing unit, the electric energy that uses described power supply unit to provide, induction produces an input signal to described radio-frequency (RF) identification responsor;
Wherein, described radio-frequency (RF) identification responsor produces one according to described AC signal demodulation and requires signal, and carries out the load modulation according to described input signal, to produce the described return signal that requires signal of response, sends out via described antenna.
2, radio input device according to claim 1 is characterized in that: described input signal be a mouse input signal, a keyboard input signal or a sensing apparatus sensing signal one of them.
3, radio input device according to claim 1 is characterized in that: described power supply unit is a battery.
4, radio input device according to claim 1, it is characterized in that: described radio-frequency (RF) identification responsor comprises a rectification circuit, in order to described AC signal being converted to a direct current voltage, and described power supply unit is a Storage Unit, receives described DC voltage to charge.
5, radio input device according to claim 4 is characterized in that: described Storage Unit comprises an electric capacity or a rechargeable battery.
6, radio input device according to claim 4 is characterized in that: also comprise:
One battery uses to described radio-frequency (RF) identification responsor and described sensing unit in order to electric energy to be provided, and the electric energy of wherein said Storage Unit preferentially is used at the electric energy of described battery.
7, radio input device according to claim 1, it is characterized in that: described power supply unit is a rectification Storage Unit, it receives described AC signal via described antenna, and described AC signal is converted to a direct current voltage, in order to charge.
8, radio input device according to claim 7 is characterized in that: also comprise:
One battery uses to described radio-frequency (RF) identification responsor and described sensing unit in order to electric energy to be provided, and the electric energy that the electric energy of wherein said rectification Storage Unit has precedence over described battery is used.
9, a kind of wireless input system, it is characterized in that: it comprises:
One electronic installation;
One radio-frequency (RF) transceiver is coupled to described electronic installation, in order to launch one first radiofrequency signal; And
One radio input device receives described first radiofrequency signal to produce electric energy, produces second radiofrequency signal of a correspondence according to an input signal modulation;
Wherein, described radio-frequency (RF) transceiver receives described second radiofrequency signal, and described second radiofrequency signal is demodulated into a fundamental frequency signal, to be sent to described electronic installation.
10, wireless input system according to claim 9 is characterized in that: described radio-frequency (RF) transceiver is a radio frequency indentification transceiver, and described radio input device comprises:
One radio-frequency (RF) identification responsor produces one according to the described first radiofrequency signal demodulation and requires signal;
One power supply unit is coupled to described radio-frequency (RF) identification and responds device; And
One sensing unit, the electric energy that uses described power supply unit to provide, induction produces described input signal to described radio-frequency (RF) identification responsor;
Wherein, described radio-frequency (RF) identification responsor is carried out the load modulation according to described input signal, to produce described described second radiofrequency signal that requires signal of response.
11, wireless input system according to claim 10 is characterized in that: described power supply unit is a battery.
12, wireless input system according to claim 10, it is characterized in that: described radio-frequency (RF) identification responsor is converted to a direct current voltage with described first radiofrequency signal, and described power supply unit is a Storage Unit, receives described DC voltage to charge.
13, according to claim 12 a described wireless input system, it is characterized in that: described radio input device also comprises a battery, to provide electric energy to use to described radio-frequency (RF) identification responsor and described sensing unit, the electric energy of wherein said Storage Unit preferentially is used at the electric energy of described battery.
14, wireless input system according to claim 10 is characterized in that: described power supply unit is a rectification Storage Unit, and it is converted to a direct current voltage with described first radiofrequency signal, in order to charge.
15, wireless input system according to claim 14, it is characterized in that: described radio input device also comprises a battery, to provide electric energy to use to described radio-frequency (RF) identification responsor and described sensing unit, the electric energy that the electric energy of wherein said rectification Storage Unit has precedence over described battery is used.
16, wireless input system according to claim 9 is characterized in that: described input signal is the sensing signal of a mouse input signal, a keyboard input signal or a sensing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100060172A CN101488040B (en) | 2008-01-18 | 2008-01-18 | Electricity-saving wireless input apparatus and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100060172A CN101488040B (en) | 2008-01-18 | 2008-01-18 | Electricity-saving wireless input apparatus and system |
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| CN101488040A true CN101488040A (en) | 2009-07-22 |
| CN101488040B CN101488040B (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100060172A Expired - Fee Related CN101488040B (en) | 2008-01-18 | 2008-01-18 | Electricity-saving wireless input apparatus and system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570628A (en) * | 2010-12-24 | 2012-07-11 | 通用电气公司 | Power harvesting systems |
| CN102738907A (en) * | 2011-03-29 | 2012-10-17 | 笙科电子股份有限公司 | Circuit and method for generating direct current voltage |
| CN103812226A (en) * | 2012-11-13 | 2014-05-21 | 集美大学 | Radio frequency energy collecting device applied to wireless mobile terminal |
| CN103823575A (en) * | 2014-03-25 | 2014-05-28 | 国家电网公司 | Portable passive mouse based on NFC wireless power supply and communication |
| CN105765783A (en) * | 2013-08-09 | 2016-07-13 | 德雷森科技（欧洲）有限公司 | Rf energy harvester |
| CN109479016A (en) * | 2016-12-06 | 2019-03-15 | 华为技术有限公司 | Beam selection system, trunking method and equipment |
| CN110896316A (en) * | 2018-08-24 | 2020-03-20 | 光宝电子(广州)有限公司 | Electronic device, wireless input device and control method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303847C (en) * | 2003-01-10 | 2007-03-07 | 财团法人工业技术研究院 | Wireless make device having no need of using battery and its transmission method |
| CN1917331A (en) * | 2005-07-04 | 2007-02-21 | 松下电器产业株式会社 | Radio-type transmitting device, container, transmitting/receiving system and transmitting/receiving method |
-
2008
- 2008-01-18 CN CN2008100060172A patent/CN101488040B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570628A (en) * | 2010-12-24 | 2012-07-11 | 通用电气公司 | Power harvesting systems |
| CN102738907A (en) * | 2011-03-29 | 2012-10-17 | 笙科电子股份有限公司 | Circuit and method for generating direct current voltage |
| CN102738907B (en) * | 2011-03-29 | 2014-10-01 | 笙科电子股份有限公司 | Circuit and method for generating direct current voltage |
| CN103812226A (en) * | 2012-11-13 | 2014-05-21 | 集美大学 | Radio frequency energy collecting device applied to wireless mobile terminal |
| CN105765783A (en) * | 2013-08-09 | 2016-07-13 | 德雷森科技（欧洲）有限公司 | Rf energy harvester |
| CN105765783B (en) * | 2013-08-09 | 2018-08-14 | 德雷森科技（欧洲）有限公司 | A kind of RF energy collector |
| CN103823575A (en) * | 2014-03-25 | 2014-05-28 | 国家电网公司 | Portable passive mouse based on NFC wireless power supply and communication |
| CN109479016A (en) * | 2016-12-06 | 2019-03-15 | 华为技术有限公司 | Beam selection system, trunking method and equipment |
| CN110896316A (en) * | 2018-08-24 | 2020-03-20 | 光宝电子(广州)有限公司 | Electronic device, wireless input device and control method thereof |
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|---|---|
| CN101488040B (en) | 2011-05-18 |
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Effective date of registration: 20211104 Address after: China Taiwan Hsinchu Science Park Hsinchu city Dusing Road No. 1 Patentee after: MEDIATEK Inc. Address before: Hsinchu County, Taiwan, China Patentee before: MSTAR SEMICONDUCTOR Inc. |
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Granted publication date: 20110518 Termination date: 20220118 |