TWI274254B - Method and system for identifying communication of computer comprising plural wireless input devices - Google Patents

Abstract

The present invention relates to a method and a system for identifying the communication of the input signals generated by each input device of a computer comprising plural wireless input devices. A receiver is installed on the computer host side for receiving the radio frequency (RF) input signals transmitted from the wireless input devices, where each wireless input device uses a different wireless communication channel and the channels are differentiated by type. For example, keyboard uses the second channel when mouse uses the first channel. Every input signal transmitted by each input device is given with a unique default type code and a unique default serial number. When multiple identical input signals are continuously transmitted in a certain time interval, the receiver receives signals from each channel in cycles, where each cycle time is shorter than the time interval. This means, in continuous multiple cycles, the receiver receives the channel signals used by various types of input devices in sequence. Then, by means of identification codes where each identification code consists of a type code and a serial number, the receiver can identify each received wireless signal to ensure the signal comes from an input device in the system.

Description

1274254 V. INSTRUCTION DESCRIPTION (1) Technical Field of the Invention The present invention relates to a wireless signal communication technology for a computer peripheral device, and more particularly to a multi-transmitter-to-single receiver communication identification technology. [Prior Art] Left, the importance of the role of the brain in today's society has no need to be rumored, and Ik is changing with computer technology, and the input device is more diverse to meet various specific needs, except for the most basic keyboard and slide. Outside the mouse, there are more digital boards, joysticks (j〇yStick), game controllers (to support -

• · l control (rem〇te control ler) and 3D pointing device (3D and so on, these forests total input two materials connected to the computer main •, η limited resources, helmets ^ no system 0 P〇rt), and the input and output of the computer is disorderly and inconvenient. The knife and the user's operation are also affected by the wire I. Although the wireless input device of the computer has been very harmonious, A is ideal.目古古 A ^ 匕卞 曰 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The emitter and receiver of the 俜σ, 4,6 21, the transmitter emits a signal, and then fixes the early identification code from the transmitter to the single receiver, and then achieves multiple transmissions. The system, as mentioned above, (2) patent;,, the: as described in W仃, it can only mention -1274254 V. The invention description (2) is for the two transmitters to share one, and needs to be used more in the shape; Still on the application = apply. Can solve the problem, such as | temple ^: the occasion, you need more complex technology to two-way communication or complex "different, 366 is not one 1 / Haimu system to share a reception cry 4 π, ΰΒ马碥Code technology to solve the input device, and because of the second: two:: This solution will not only increase the manufacturing into a wireless channel to communicate; when the number of wireless input devices use the same -, the ... The more the number of wireless input devices in the system, the degree of mutual interference between the RF waves emitted by Yu Jiayi will be serious, but this _ η soil and 々 ^ ^ ^ are included in the above two patent cases. First of all, the technology is right. Although the bran is ten ^ ^ can, but this patent case has a design channel to choose the power of two or two similar to the traditional analog wireless phone (_1〇g frequency, the first A: two strong use In order to solve the problem of using the same system outside, the #使#兮^ Ϊ > user selects the channel 2 and all the wireless input devices synchronize the communication, and, therefore, the multiple wireless devices in the system It is not helpful to use the interference generated by the same channel. In many computer applications, many computer systems are set up next to each other, such as offices, Internet cafes, and libraries. Each computer system is only about one meter apart, but RF is generally used (Rad i 0). Frequency, RF) wireless input devices for communication, the communication range is less than 1.5 meters, so a wireless receiver belonging to a computer system is very likely to receive wireless transmitters belonging to other nearby computers. The signal transmitted by the radio, so for the wireless wheeling device used in the computer system, the identification and prevention of interference within and outside the system are considered.

1274254 V. The subject of invention (3), but the wireless input device for computers that has been seen so far does not have a comprehensive solution to the above problems. SUMMARY OF THE INVENTION The present invention provides a method and apparatus for wireless communication to enable a plurality of wireless input devices to be mounted on an electric moon, and corresponding to a single receiver, the receiver can identify each of the input devices. Input signal, the computer can be any information processing system controlled by a microprocessor, but especially refers to a personal computer, a workstation, a personal digital assistant, and a game platform. Ns ο 1 e ) special 'and input devices can also be any type, such as slippery, keyboard, joystick, tablet, touchpad (playpad) and game controller, (gamepad), etc. - computer not only A plurality of different types of devices are installed, such as one of the aforementioned input devices, or a plurality of input devices of the same type, such as two mouse and/or three keyboards. The invention is a low-power wireless radio frequency communication method, and the communication mode is set in each wireless input device to set a wiper to set a receiver to the brain host side, each wireless input is installed, and the wireless power is different. The communication channel, such as all the mouse, uses the $f-type distinction to make the disc use the second channel. Each input device sends a frequency, and the key has a specific preset identification code, and the identification code is: the incoming signal. All are composed of serial code, and the same input signal, in the day: type code and one shot complex array, the receiver is smaller than the time interval: two intervals continuously sent in each cycle to receive a channel signal , that is, between =, cycle, and thinking, in the complex cycle of 1274254 -------. V. Invention Description (4) The signal used by the type of wheel device to the J code to receive the wireless signal " Identification, indeed = = ί= of the present invention for subsequent processing of the input signal. The host room provides: ϋ wireless wheeling device and computer, for the library ± L for you t available & 6 and then several wireless Input and equipment should share a receiver. The present invention provides a method and device for simultaneously using a plurality of different..., line communication. Another object of the present invention is to provide a method and device for using the communication method. The seventh aspect of the invention is as follows: [Embodiment] In one figure, it can be seen that a plurality of wireless input devices (3b) are connected to a computer host (丨) through wireless communication, and each input device (, 133) is respectively provided with a wireless radio frequency transmitter. The host computer (1) is connected to a receiver (2) corresponding to the transmitter of the input device (3), and f is a combination of various types and quantities for the input device (3 1 _ 3 3 ), such as In the embodiment shown in the figure, a slippery air conditioner (31), two keyboards (32A, 32B) and three remote controllers (33A, 33B, 33C) are installed on a computer main unit ( '), that is, three in total. Six types of input devices. Continuing to refer to the second diagram, the transmitter system of the input device (31-33) of the present invention, the RF signal unidirectionally transmits a wheel signal (4) to the receiver (2), the input The signal (4) is in the form of Frequency Shift Keying (FSK). Week by the 'right-to-frequency ί 2 · 4 G H z and as the carrier frequency, may be 5 μ Η z

Page 8 1274254 V. Description of the invention (5) ^ Bandwidth, which is the channel spacing, to define dozens or even hundreds of communication frequencies. As shown in the second figure, it is a better channel allocation table. There are 32 channels in the table, of course, it can also be increased or decreased as needed. Each input device 3 3 3 ) uses a preset channel by type, such as a mouse (3 1 ) using the channel '3' (3 2 A ' 3 2 B) using the second channel, the remote control = 3A 33C ) Use the third channel. Another possible embodiment is that the type of the input device (31 to 33) is not distinguished, and all the input devices (31 to 33) use different channels. This embodiment occupies more channels but is on the input device ( 31^33) When the number is small, there is still practicality. When the ^^一输^ device (3b33) is operated by the user, the corresponding production crying#ϋ(4) is within a preset first time interval, and the number of transmissions is: Periodic signals, as shown in the second figure, the first time interval is set to 12ms, that is, for each operation of two 33), the first == continuous transmission at 12ms 16 periodic input signals (4), that is, each (ΛιπΓΛ is 0·7^' and there is approximately 〇乂= in the input signal cycle: number (4)), and the rest are approximately. The period of the bird is the work IheC42), the different types of punishment are transmitted by different channels at different points (31-33) at different times (31) in the - ί = group input signal (4), such as slip Mouse Ang Shoujian occupies the first channel, and the keyboard Α (32Α) is on the second day, 'sfl number-group second input signal (4,). The signal receiving system of the other receiver (2) is received by the frequency-frequency of the other receiver (2). The receiving period is received by the frequency hopping sequence which is less than the first time period, and the second time interval of the 1 ^ interval the first

f 9 page 1274254 V. Description of invention (6) The day-to-day interval and the younger one-time interval are preferably the following 丨鳒 丨鳒 :: Τ 2: Τ 1/(η-ΐ),, here Τ 2 is the younger brother In the day-to-day interval, Τ1 is the first time interval, η is the type of the input device (31-33), and η - 2, because the present invention is the juice set by the plurality of input devices (3 1 - 3 3 ) Therefore, the number of types is at least 2, that is, if the number of types is 2, the first time interval and the second time interval are equivalent, if the two types of input devices (3 1 - 3 3 ) are shown in the first figure. , the second time interval is one of the 弋-G points of the first time interval, that is, when T1 = 12ms, T2 = 6ms, the receiving pirate (2) is the cycle of the second time interval, The frequency hopping reception is performed sequentially for each communication channel used by the device (31-33), and in the preferred embodiment, the second embodiment receives the second subsequent one in the first cycle. Periodically receive the signal of the second channel, the signal of the first channel, and the fourth cycle returns to the reception. The first reception cycle is also the pulse wave type operation. In the embodiment of the car, the process is closed every time. , Week 4 r, there 〇.8ms 々 of work, when the remaining period can save power consumption, cycie) below, the subsequent processing of low work. The closed period can be used to receive the signal due to the first time interval and the formula for each group of input signals (there are three types of input devices in the first and second intervals: 3: Z of the three types of input devices:: the sum of the closing periods, in For example, the second act ', 曰 from the first channel to the second, only knows that a group of channels receive the 』 and two of them, the order receiving-round, so there are three • _ "point to 5 The sum of the time of the point)

The duration of all the work of the 10th gastric tract receiving cycle ( ) is approximately equal to a set of frequency 1274254. 5. Description of the invention (7) The interval between the guardian and the day is equivalent, and the preparation period (ums), the second entry, the cycle (0.75ms) is slightly smaller Ϊ = the working period of the corresponding channel will not be lost. Receiving the mother-input signal (4) On the other hand, according to the inventor's income, the signal reception device (3, 33) is received if the signal is received for the single-round reception period of 59 ms or less. The receiving period of the same-channel non-channel is 6ms/^. For the example, the total number (that is, using the channel 2 乂 乂 ,, far lower than the above one: the total number of the second class fee can be at least 9 kinds, It is sufficient to cope with the general use/requirement. In addition, '4 solves the interference problem of the same channel of the input device (3b 33) used by other wireless devices outside the system, and the present invention also provides 4 internal channel switching function. Each input device (31 to 33) selects a plurality of available channels from the channel table of the third figure, and arranges them in a certain order, and the plurality of input devices (3 1 - 3 3 ) of the genus/type are used. The same channel sequence, as shown in the fourth figure, is a better channel preset table. The channel sequence of each type of input I set (31-33) is completely different, and there is no shared channel. If the first type of input device originally uses the first channel, After pressing the frequency switch, the fourth channel will be used instead, and once pressed, the seventh channel will be used; and the second type of input device originally uses the second channel, and will be used after pressing the channel switch once. Fifth channel, press again

1274254 V. Invention Description (8) Press once to switch to the eighth channel and switch according to the predetermined order. When the channel preset table shown in the four pictures is not fixed, it can be changed as long as the channel sequence does not repeatedly use the same channel; then the receiving channel of the receiver (7) will also have a corresponding switch. As in the embodiment shown in the second diagram, the receiver (2) originally receives the input signals generated by the input devices (31-33) of the first, second and third types by the second, second and third channels respectively. (4) If the first type of input device (3 is switched to use the fourth channel, the receiver (2) correspondingly uses the fourth, second, and third channels for receiving. Continue to refer to the fifth figure, the present invention The input signal (4) reversed by each input device (31-33) will be assigned to each of the devices (" for the receiver (2) to determine whether the received signal is: Input device (31-33). The identification code (5) is composed of type code (51) and code (52), wherein the type code (5丨) is fixed and invariable, and the input device (3"3) For the type setting, if it is encoded in binary two-digit code, up to four types of settings can be allowed. The code carries the code, then up to eight types of settings can be allowed. If the three-code type code is used, then 0 0 0 represents the first type, 001 represents the second type, 〇1〇代代,,,, two types, etc. Of course, other coding principles can also be used. In the above embodiments where the in-device (3b, 33) uses different channels, the part (51) can be omitted. ^贞码码的识别码(5) The sequence code (52) refers to the same type of code (5 serial number input device, of course, the serial code (5 2 ) can still exist alone without using the type code, that is equivalent to the identification code ( 5). The serial number 1274254 V. The invention description (9) (52) is a changeable user, and the user can change it by pressing a serial code switching switch (see FIG. 6) to respond to different Input device (31-33)

The use of the combination, the two-code and three-code codes can respectively allow four and eight input devices of the same type (31-33), which are sufficient for general use. If the two-code system is used, it can be used. Four sets of codes, 〇 1, 1 〇, n, etc. are used as serial numbers to distinguish different devices of the same type. In the embodiment shown in the second figure, the second type of wheel-in device is a two-mouse mouse. (32A, 32B), its identification code (5) can be 001-00 and ooi-〇丨; the third type of input device is three remote controllers (33A, 33B, 33C), its identification code (5) can be It is 010-〇〇, 010-01, and 010-10. Therefore, the identification code (5) of each input device (31-33) is unique. The receiver (2) can obtain the identification code (5). Know the source of the received signal. However, in another embodiment in which each type is only allowed to use a single input device (3Λ - 3 3 ), the presence of the identification code (5) is not necessary for the pair of input devices (3b 3 3 ) The different channels used are sufficient to distinguish input signals from different sources (4). The sixth figure is a flowchart of the method of the present invention, which first sets the channel and sequence code (5 2 ) ^1) used by each of the wheel-in devices (3 1 - 3 3 ), but In principle, this step is only required when the first installation of the input device (3 Bu-) or the installed input device (3 Bu 33) is increased or decreased or replaced: ^ί After the setting is completed, the change is also transmitted to the receiving device (3"3);;, /, Ζ, 同步, can update the data synchronously (S2), the receiver (2) is based on the 33^ The second time interval of the target ^#一# is the cycle, and the round-in device (3) is used to receive each channel one by one (S3), when the user operates

Ϊ 274254 V. Invention description (10) When the wheeling device (31-33) is used (S4), the first day of the piano is a strong, and the first day of the house is set (3 1 - 3 3 ) at the preset Is) The performance of the transmission of a plurality of periodic input signals m 2) =; receiver (2) is the frequency hopping acquisition mode, and the second group: m:, the interval exists as described above, so each ί: Gan will communicate with each channel's receiving cycle - the second time has no biotechnology rc = "there must be - the same frequency, the channel is different; of course: (S6) 'When the input signal (4) is the same as the channel of the receiving cycle The input signal will be received (S7). After receiving, it will be based on the identification code (5). Whether the source is from the input device (S8) in the system, if not, = pre-processing, right, that is, the received Input signal (1)) is post-processed, which completes the communication operation of the input device (3b 33). The communication method of the text can be added by the circuit diagram of the seventh and eighth diagrams, the seventh figure The display system is a typical circuit of an input device (31-33), which is controlled by a first microprocessor (343) as a control center. For the operation of the peripheral circuits, the input devices (31-33) are typically provided with a push button switch (342) for the input of the commander, or an induction sensor for the action (3 4 1)' The mouse (3 1 ) and the tablet are available, and the first microprocessor (343) converts the signal to the host computer according to the command signal sent by the button switch (342) and/or the sensor (341). (1) Acceptable 输入 input signal (4), a non-volatile first memory (3 4 6) is used for the channel and identification code used by the input device (31-33) (5) ), etc., the data of the younger brother (3 4 3) is based on the data to encode the input signal (4) and control the first frequency synthesizer (3 4 7) to correspond the channel to the input signal (4) ) to be modulated to become a periodic form as shown in the second figure.

Page 14 1274254 V. Invention Description (11) It is transmitted through the first RF amplifier (348) and the transmitting antenna (349), and the channel switching switch (344) and the sequence switching switch (345) are electrically connected to the first A micro-processing is (3 4 3 )' for the user to operate the switching communication channel and the serial number (52), and the changed data is stored in the first memory (346) and the change data is simultaneously transmitted. The receiver (2) is caused to cause the corresponding data change to be generated by the receiver (2). The figure shown in the eighth figure is a typical circuit of the receiver (2), which is also treated with a first 为 processing as (2 4 ) as a control center, and a non-volatile connection with the second microprocessor (2 4 ). The second memory (26) stores data such as a channel and an identification code (5) used by each input device 2 (3ι-Μ), and the second micro-processing cries: the second frequency synthesis is controlled according to the data. The device (23) performs frequency hopping and demodulation, so that the receiving antenna (2) and the second RF amplification are crying (the received channel input signals (4) can be correctly received and renewed in a corresponding receiving week. After the second microprocessor performs the processing (by identification) and the signal processing, it is received (1) to the host computer (1) via the interface (25) that is compatible with the interface. The round-trip signal transmission is only used to limit the present invention to a preferred embodiment of the present invention, and other familiar techniques of the present invention can be completed under the creative spirit of the present invention. Effect ^ off the invention'

Page 15 1274254 Brief description of the diagram [Simple description of the diagram] The first diagram shows the connection between a computer mainframe and a plurality of wireless input devices. The second diagram is the input signal and receiver transmitted by the input device of the present invention. Timing diagram between reception cycles. The third figure is the channel definition table of the present invention. The fourth figure shows the channel switching sequence mode of each input device of the present invention. The fifth figure shows the combination relationship between the input signal and the identification code of the present invention. Figure 6 is a flow chart of the communication method of the present invention. Figure 7 is a block diagram showing the circuit of the input device of the present invention. Figure 8 is a block diagram showing the circuit of the receiver of the present invention. [Main component symbol description] 1...computer host 2...receiver 2 1...receiving antenna 22...second radio frequency amplifier 23...second frequency synthesizer 24...second microprocessor 2 5...input and output interface 26...second memory Body 31-33...Input device 341...Inductor 342...Key switch 343...First microprocessor 344...Channel switch 34 5 ··· 4 ^ ^ ^ Μ 346...First memory control 347...First frequency synthesis 348...first radio frequency amplifier 349...transmit antenna 4...input signal 4 1...signal area 42...space area 5...identification code

Page 16 1274254 Schematic description 51...type code > 52... ordinal code 1» - - circle drawing _1 page 17

Claims (1)

1274254 Sixth, the scope of application for patents, -1 杳 two kinds of computer mainframes and a plurality of round-in 稷 9-input devices each contain _ ..., ^ ° ^ _ receivers for receiving from each: the computer host contains: The No. 2 method includes the following steps; the electric wave of the wheeled clothing/transmitter means that each of the wheeling devices is set to be the same as the first type of the complex input of the type 1 device. The operated input transmits a plurality of identical input channels. The channel used is continuously periodic. The receiver periodically receives the second-period interval of each of the inputs in a sequence of less than the first period. The frequency used by the device is preset by one. 2. If the range of the patent application and the second time interval are the right method, the first time VVU-D'nd has the following relationship: Here A The number of types of the second time interval. 1 Just $interval' n is the wheeling device 3 · As in the patent application range #1 I/transmitter, the periodic seat = 柢$ method, /, should be composed of input loading and closing periods. And receiving the Jay's receiving period is performed by the method 4. As described in claim 3, each of the single periods is not greater than the working period of the receiving period. The round of entry is 5. If you are in the middle of the patent scope! The method according to the item, wherein the receiver pair 1274254 * 6. The scope of the patent application - the receiving period of the same channel is not more than 5 9 ms. 6. The method of claim 1, wherein the wheeled signals transmitted by each of the input forms are respectively associated with an identification code unique to the input device for the receiver. Identify the source of the signal. 7. The method of claim 6, wherein the identification code is composed of a type code and a sequence code, and the type code is according to a type η to which each wheeling device belongs; The serial number of the complex input device that belongs to the same type of code. 8. The method of claim 7, wherein the plastic code is fixed immutable. 9. The method of claim 7, wherein the serial number is changeable. 1+0·—a wireless communication method between a computer host and a plurality of input devices, the plurality of input devices each including a transmitter, the computer host including a receiver for receiving radio waves from each of the input devices/transmitters The signal, 2 method includes the following steps: setting each input device to use a different preset communication channel; When the user operates any of the wheeling devices, the operated input device automatically transmits a plurality of identical wheeling signals continuously in a first time interval with the channel used by the user; The state is periodically received in a preset order by using a channel that is less than one of the first time intervals and a second time interval. 11 · The method described in claim 1 of the patent application, wherein the first time 1274254 VI. The interval between the patent application scopes and the second time interval has the following relationship: Τ2 = Ί\/(η-1), n-2 where K is the second time interval, which is the third time interval, ^ Enter the number of devices. 1 2. The method of claim 0, wherein the periodic input signal transmitted by the input device/transmitter is composed of a signal area and a blank area; and receiving The receiving period of the device consists of the working period and the closing period. 1 3 The method of claim 12, wherein each single period of the input signal is not greater than a working period of the receiving period. The method of claim 10, wherein the receiver has a receiving period of no more than 59 ms for the same channel. The method of claim 2, wherein the input signals transmitted by each of the input devices/transmitters respectively have an identification code unique to each input device for the receiver Identify the source of the signal. 1-7. If the method described in claim 15 is applied, the identification code is changeable. The system includes at least two input devices for wireless communication between the computer host and the plurality of input devices, each of which includes a transmitting crying type and #T port ^ σσ ' according to the input device, the different wireless channels are transmitted by the The wheel is placed: the same-type multi-input device enables the two generated wheels to be used as the leader of the wheeling device, and the same channel, ρ is in the first interval The frequency of use it ^ ^ Μ , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The channel is collated in a predetermined order, and the round-in 'Γ: receives revenue from the receiving period of the corresponding channel. 18. The basin and the receiver use the radio frequency channel as described in claim 17 of the patent application. Medium 5H launcher 1 9. As in the system described in item 7 of the patent application, the interval between the complex and the second time interval has the following relationship: /, Zhong Le Le 4 Τ 2 = Τ 1 / (η-1) ^ η where T2 is the second time interval and τ is the type of the first time. η is an input device. The system of claim 17, wherein the periodic input signal transmitted by the input device/transmitter is every _cycle = by a signal area and a blank area The composition; and the receiving period of the receiver is composed of a period of time and a period of closure. 2 1 • As stated in the second paragraph of the patent scope, the single cycle of the input signal is not greater than the working period of the receiving cycle. 2 2 The system of claim 17, wherein the receiver has a reception period of no more than 5 9 m s for the same channel. 23. The system of claim 17, wherein the input signals transmitted by each of the wheeled I/transmitters respectively have an identification code unique to each of the wheeled devices for receiving The device identifies the source of the signal. 2 4 · The system described in claim 2, wherein the identification Page 21 1274254 VI. The scope of application for patents consists of type code and serial code, which is set according to the type of each wheeled device; the serial code is the serial number of the complex input device of the same type of code. . Wherein the sequence code is where the sequence code is 2 5 · The system described in item 24 of the patent application is fixed immutable. 2 6 · The system can be changed as described in item 24 of the patent application. 2 7 • The system described in Section 2 β of the patent application is subject to change by switching operation. 28. The wireless communication system between the computer host and the plurality of input devices comprises: ^ at least two input devices each including a transmitting crying, and (2) a wheeling signal produced by the device, as any of the input devices, The input device that is operated - the input signal of the same number of consecutive channels of the channel used in the time interval; the plurality of phase-receiving devices are operatively connected to a computer main, one of the time intervals and the second time interval For the period, the periodicity, the channels used by the device are sequentially received one by one in a predetermined order, and the 'rounding signal can be received by the receiver during the receiving period of the corresponding channel. In the system described in the scope of claim 28, the complex and the receiver use the radio frequency channel. The first to the second time interval is the following relationship between the system and the second time interval: 〜~时 Page 22 1274254 Ts^^/Cn-l) ^n>2 = T2 is the second time interval '?1 is the first time interval 'n is the wheeled device state? The system described in the 28th patent range' / Periodically input signals emitted by the emitter, each cycle of the second input - the signal area and a blank and the receiving two are composed of the duration and the closing period. 4, the system is 32. The system described in claim 31, wherein the parent of the round number is not greater than the working period of the receiving period. The system of claim 28, wherein the receiving period for the same channel is no more than 59 ms. 3 4. The system of claim 28, wherein the input signals transmitted by each of the devices/transmitters are respectively associated with the identification code of each input I for receiving. The device identifies the source of the signal. The system of claim 34, wherein the identification code is composed of a type code and a sequence code, the type code being set according to the type of each input device; the sequence code system It is the serial number of the input device of the same type of code. Wherein the type code is where the sequence code is the code system 36. The system described in claim 35 is fixed immutable. 3 7 · If the application scope of the patent is in the 3rd 5th item, the system of the household can be changed. 3 8 ·If the scope of the patent scope is 3rd γ item, the user changes the switch operation. 1274254 ' Page 24