CN1200359C - Single frequency wireless peripheral equipment transmission protocol coding and recognizing method and system thereof - Google Patents
Single frequency wireless peripheral equipment transmission protocol coding and recognizing method and system thereof Download PDFInfo
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Abstract
The present invention relates to a wireless peripheral equipment transmission protocol coding and recognizing method and a system thereof. A single frequency is used as a coding mode by an amplitude shift keying modulation (ASK. Modulation) technique; a retransmission method is also used; packets are continuously transmitted twice within the period of transmitting the packets once in the wireless system with a first data transmission unit, a second data transmission unit and a data reception unit; the quadruple of the addition of two kinds of transmission time of two different packets is used as the foundation of transmitting the packets once. In this way, the present invention achieves the concrete efficacy of simultaneously operating two data transmission units, identifying the efficacy of the two different data packets by one data reception unit, and reducing the cost of a wireless module.
Description
Technical field
The invention relates to a kind of coding method and system, particularly a kind of coding and recognition methods and system thereof that is used for the single frequency wireless peripherals host-host protocol of wireless mouse and Wireless Keyboard.
Background technology
Computer peripheral on the market as keyboard, mouse etc., mostly is to do data transmission in wired mode at present.Wired computor-keyboard and mouse use owing to be subject to circuit, so compare inconvenience, also can't grow apart from manipulation keyboard and mouse.
In order to improve the shortcoming of peripherals such as wire mouse and keyboard, the design of existing wireless keyboard and mouse at present, but, expensive on the price at present.Most product is owing to be separately design, so, buy wireless mouse or keyboard separately, a wireless transmission of cover and a receiving equipment all respectively arranged.Thereby, if two kinds of wireless devices are all bought, just have two wireless transmission of cover and receiving equipments, this two covers wireless side equipment, all design and irrelevant mutually separately except time-consuming, also quite expends cost.
Other has a kind of product then wireless mouse and Wireless Keyboard to be integrated, only use a receiving end, but, still have some problems to exist, for example, the used transmission frequency of Wireless Keyboard and wireless mouse is different, so, wireless transmission needs different designs with receiving trap, that is receiving trap need receive two kinds of different frequencies.Please refer to " Fig. 1 ", first data transfer unit 10 (for example mouse) transmits data by wireless sending module 101 with carrier frequency F1, second data transfer unit 20 (for example keyboard) then transmits data by wireless sending module 201 with carrier frequency F2, at receiving end, that is, Data Receiving unit 30 then receives by carrier frequency F1 and F2 with wireless receiving module 301.Thereby because carrier frequency different (F1 and F2), so must use different radio-frequency modules, that is wireless sending module 101 is different with the design of 201 liang of groups with second data transfer unit 20 for first data transfer unit 10; Similarly, receiving end, that is Data Receiving unit 30 must adopt the different frequency hopping of two covers on software design.So, in design, using the existing technology of this kind, company must spend higher R﹠D costs at doing design and production on hardware and the software, and these R﹠D costs and production cost promptly correspondingly are reflected on the product price.
Therefore, how with peripheral units such as similar wireless computer keyboard and mouses, transmitted in an identical manner, that is, use identical host-host protocol, reach with single-frequency can employed together in the purpose of the wireless product of computer periphery, become the emphasis of research and development design.
Summary of the invention
In view of above prior art problems, the object of the present invention is to provide a kind of coding and recognition methods and system thereof of single frequency wireless peripherals host-host protocol, utilization amplitude shift keying modulation (Amplitude-Shin keying Modulation, ASK Modulation) with time division multiplex (Time-Division-Multiplexing, TDM) technology, can allow Wireless Keyboard and mouse etc. install transmission information under same frequency, therefore, the cost that can significantly reduce wireless module (staring at or infrared ray IR as radio frequency) 15 also can reduce the power of wireless module, and, on software, need not use complicated technology such as frequency hopping.
The present invention has a purpose to be in addition, a kind of coding and recognition methods and system thereof of single frequency wireless peripherals host-host protocol are provided, have special-purpose identification code, can reach effective anti-jamming capacity, prevent and the commercially available consumer AV household appliances purpose of mutual interference mutually to reach.
According to technology disclosed in this invention, the invention provides the coding and the recognition methods of single frequency wireless peripherals host-host protocol, be that the utilization amplitude shift keying is modulated (ASK Modulation) and set a single-frequency as having one first data transfer unit, the carrier frequency of the wireless system of one second data transfer unit and a Data Receiving unit, to do the transmission of a numerical data, comprise the following step: set first packet and second packet of the first identification bag and this second data transfer unit and the delivery time of the second identification bag of this first data transfer unit, and repeat in the data time to transmit bag twice in transmitting once to wrap according to a re-transmission method; Set the digital coding content of this second packet of this first packet of this first data transfer unit and this second data transfer unit, and according to each field contents of the transfer rate setting data bag of this first delivery unit and this second data transfer unit; Set first identification bag of first delivery unit and the second identification bag of second delivery unit, in order to respectively as the identification of this first data transfer unit and this second data transfer unit, and according to each field contents of the transfer rate setting data bag of this first delivery unit and this second data transfer unit; And, set an identification key, this communication system is to be a digital coding state at ordinary times, be to be a data identification state when pressing this identification key, when this communication system transmits this first packet and this second packet during in this digital coding state, when this communication system transmits this first identification bag and this second identification bag during in this data identification state.
Use above-mentioned technology, the invention provides a kind of coding and recognition system of single frequency wireless peripherals host-host protocol, this system comprises: one first data transfer unit, be to have one first identification key, and have one first wireless transmission unit in order to transmit one first packet with setting as one first identification bag; One second data transfer unit is to have one second identification bamboo shoot with the setting as one second identification bag, and has one second wireless transmission unit in order to transmit one second packet; And-Data Receiving unit is to have one the 3rd Data Receiving unit, in order to receive this first packet, the first identification bag, second packet and the second identification bag.
Description of drawings
Fig. 1 uses the synoptic diagram of different transmission frequencies respectively for existing keyboard and mouse apparatus;
Fig. 2 is the coding of single frequency wireless peripherals host-host protocol of the present invention and the system of identification;
Fig. 3 is an ASK modulation technique synoptic diagram;
Fig. 4 is that data transfer unit of the present invention transmits the bag synoptic diagram;
Fig. 5 is the transmission bag synoptic diagram with first data transfer unit of the present invention;
Fig. 6 is the transmission bag synoptic diagram with second data transfer unit of the present invention;
Fig. 7 is the transmission bag synoptic diagram of the present invention with the Data Receiving unit;
Fig. 8 A-8E is a bits of encoded synoptic diagram of the present invention;
Fig. 9 is the packet synoptic diagram that mouse of the present invention transmitted;
Figure 10 is the packet synoptic diagram that keyboard of the present invention transmitted;
Figure 11 increases the coding of single frequency wireless peripherals host-host protocol of ID identification and the system of identification for the present invention;
Figure 12 is the data structure of mouse data bag of the present invention;
Figure 13 is the data structure of keyboard data bag of the present invention;
Figure 14 is the ID recognition data bag synoptic diagram that mouse of the present invention transmitted; And
Figure 15 is the ID recognition data bag synoptic diagram that keyboard of the present invention transmitted.
Embodiment
Please refer to " Fig. 2 ", the coding of single frequency wireless peripherals host-host protocol of the present invention and the system of identification.Single-frequency formula of the present invention system has comprised first data transfer unit 40, second data transfer unit 50 and Data Receiving unit 60.First data transfer unit 40 and second data transfer unit 50 have a wireless transmitter module 401 and 501 respectively, these two modules are identical module on framework, can be radio frequency (RF) or infrared ray (IR) transmitter module, 60 of the carrier frequency F30 Data Receiving unit that its employed together is identical have a wireless receiving module 601, and it needs to receive single carrier frequency F3 and gets final product.So system of the present invention can realize simplicity of design, no matter only need use single-frequency can reach the purpose of wireless transmission at transmitting terminal or receiving end.
Then, below will introduce the present invention and in fact how reach single-frequency and can allow two kinds of different radio peripheral apparatus utilization same frequencys, that is, the coding of host-host protocol of the present invention and recognition methods.
At first, because the utilization single-frequency, so, modulation technique adopts amplitude shift keying modulation (Amplitude, Shift keying Modulation is hereinafter to be referred as the ASK modulation), the characteristic of ASK modulation is, with the single-frequency running, and can comply with the length modulated pulsewidth of required bit 1.Shown in " Fig. 3 ", digital signal x originally (t) becomes signal SASK (t) after making through ASK week, it is the part of Tb that the part of bit 1 becomes the middle pulsewidth of SASK (t), the part of bit 11 then becomes the part of twice Tb, and bit is 0 part, then not output, thereby the present invention can reach the effect of province's power in the part of wireless module.
Secondly, do the clock division of peripherals (as first data transfer unit 40 in " Fig. 2 " and second data transfer unit 50) again according to the mode of TDM, details are as follows:
Please refer to " Fig. 4 ", the time length of now setting the packet of first data transmission unit is the B time, wherein, T1 is each required consumed time of a secondary data that transmits, in order not allow the transmission data make mistakes and to guarantee complete being received of bag (packet) energy, therefore, every transmission one secondary data all repeats to transmit packet one time, and each interval of asking that repeats is T2; The time of the packet of second data transmission unit is long to be the A time, and transmitting a spent time of packet is T3, transmits twice equally, and be T4 its interval time.
But,, then must transmit bag in regular turn if will meet two demands that different bags can transmit simultaneously that allow, that is, need with the TDM time division.From first data transfer unit, repeat to transmit the interval T 2 of bag and must can hold the A time, that is T2 〉=A (formula 1) is shown in " Fig. 5 ".Simultaneously, first data transfer unit is the time T 1 of transfer data packets each time, and it transmits remaining time of bag, the A time that must be able to hold the packet of double transmission second data transfer unit continuously twice, that is, T1-(T2+2B) 〉=T4+2A (formula 2).
From second data transfer unit, the T4 constantly that at every turn repeats transfer data packets then arranges to hold the size of the whole first data transfer unit packet, that is T4 〉=T2+2B (formula 3) is shown in " Fig. 6 ".Simultaneously, the time T 3 of transfer data packets each time, it transmits the remaining time of bag continuously twice, the packet that must be able to hold continuously whole first data transfer unit, that is, bag time of twice transmission, first data transfer unit repeated, that is, T3-(T4+2A) 〉=T2+2B (formula 4).
Comprehensive above result can get T1 〉=4 (A+B) (formula 5), and T3 〉=4 (A+B) (formula 6) from formula 1-4.So indivedual required delivery times of first data transfer unit and second data transfer unit, four times that are more than or equal to packet time long institute addition separately get final product.So,, can draw that to transmit the required time of a secondary data long as long as set the time span of different pieces of information bag.
So design, its effect can be seen at receiving end, please refer to " Fig. 7 ".If first data transfer unit and second data transfer unit transmit data simultaneously, then situation will be shown in " Fig. 7 ", the bag data that the Data Receiving unit is received, because the bag data generation data collision that transmitted by first data transfer unit and second data transfer unit first time, so these data will be beyond recognition in the Data Receiving unit.But, wrap owing to the present invention transmits once in first data transfer unit T2 interval time (T2 〉=A), similarly, transmit once bag (T4 〉=B) in second data cell T4 interval time, so after first bag (as B) and another bag (as A) were overlapping, the bag (B ') and the bag (A ') of another repetition that second repetition can not take place were overlapping again, so the Data Receiving unit still can intactly receive second bag that repeats to transmit (B ' with A ').
In fact, because the design that twice duplicate packages of this kind transmits, allow two kinds of different data that data transfer unit transmitted, no matter transmission data at any time, no matter have or not the overlapping situation of data takes place, the Data Receiving unit can intactly receive two kinds of different bag data.So by the time division of this kind TDM, the present invention only need design with 7 cover receiving equipments at receiving end and get final product, that is, as long as the content of bag can be recognized in the Data Receiving unit.
The invention solves the time allocation problem that bag transmits, then, below will introduce the technology that in fact the present invention handles two kinds of different peripherals, that is, the design of bag content, the present invention will be a specific embodiment with wireless mouse and Wireless Keyboard.Because mouse is different with the data content that keyboard is transmitted, so the bag size of design is also different, aforesaid A and B, its time size is possible different, below will state it respectively.
From the bag data structure of mouse, please refer to " Figure 12 " earlier, the data of mouse account for five bytes (Byte), and each byte has 8 bits (bit) data, and the field data detailed description of each byte is as follows:
Component type (device type): in order to the type of identification data transfer unit, for example mouse is 10;
Sequence number (Sequence number): receive the sequence number of bag in order to recognize each, for example, the packet number of repetition is the same, as 0 and 0, or 1 and 1; And contiguous two different bags, sequence number is then different, is 0 as the sequence number of a bag, its two contiguous different Bao Zewei 1 then, and vice versa.
Low electric weight (Battery Low): the battery status of data transfer unit, be normal condition as establishing 0,1 is low state of charge.
Set (Set): the indication of identification code transmission state, can establish 0 and be general transmission state, 1 is the state of identification code assignment procedure.
M: be middle mouse button (Middle Button) state, establish 1 and push for middle key.
R: be right mouse button (Right Button) state, establish 1 and push for right button.
L: be left mouse button (Left Button) state, establish 1 and push for left button.
Sign (signed) bit of YS:X direction motion.
Sign (signed) bit of XS:Y direction motion.
Z0-Z3: be the motion of the direction of mouse.
B5: be mouse the 5th key (5th Button) state, 1 is that the 5th key is pushed.
B4: be mouse quadruple linkage (4th Button) state, 1 is that quadruple linkage is pushed.
Whether byte 5 is check code (Checksum), wrong in order to check (detect) bag.
Then, see the bag data structure of keyboard again, please refer to " Figure 13 ", the data of keyboard account for three bytes (Byte), and each byte has 8 bits (bit) data, and the field data detailed description of each byte is as follows:
Component type (device type):, be 01 as keyboard in order to the type of identification data transfer unit;
Sequence number (Sequence number): receive the sequence number of bag in order to recognize each, for example, the packet number of repetition is the same, as 0 and 0, or 1 and 1; And contiguous two different bags, sequence number is then different, is 0 as the sequence number of a bag, its two contiguous different Bao Zewei 1 then, and vice versa.
Low electric weight (Battery Low): the battery status of data transfer unit, be normal condition as establishing 0,1 is low state of charge.
Set (Set): the indication of channel transfer state, can establish 0 and be general transmission state, 1 is the state of identification code assignment procedure.
M/B: represent the index that this key is knocked or removes, the M table is set up sign indicating number, and B shows interruption code.
End: the indication of the index of keyboard state, can establish 0 for still having at least one key to be operated, 1 all decontrols for all buttons, that is, be not operated.
Whether byte 3 is check code (Checksum), wrong in order to check (detect) bag.
Then, promptly must define the beginning of each bag and the coding of end code and each bit, please refer to " Fig. 8 A-8E ".Emphasize that once more in the above-mentioned specific embodiment, mouse has accounted for the data volume of 40 bits, and keyboard has accounted for the data volume of 24 bits.In real the work, the transfer rate (report rate) of mouse (as the PS/2 of standard) and keyboard is approximately more than or equal to per second 40 times, that is per second can transmit the data of 40 bags, so each bag transmissible time of data is in 25 milliseconds (ms).Except that this restriction, also must add T1 〉=4 (A+B) (formula 5), with the restriction of T3 〉=4 (A+B) (formula 6), that is wrap the delivery time at every turn must be more than or equal to mouse and the time addition of keyboard bag four times.Under this restriction, can do following time set, the whole bag delivery time is located at 24 milliseconds:
Bit " 0 " is the noble potential of 30 microseconds (μ s) and the zero potential of 30 microseconds (μ s), shown in " Fig. 8 A ".
Bit " 1 " is the noble potential of 40 microseconds (μ s) and the zero potential of 40 microseconds (μ s), shown in " Fig. 8 B ".
Unwrapping the beginning is the noble potential of 55 microseconds (μ s) and the zero potential of 55 microseconds (μ s), shown in " Fig. 8 C ".
End-of-packet is the noble potential of 70 microseconds (μ s) and the zero potential of 70 microseconds (μ s), shown in " Fig. 8 D ".
So, to distinguish by such bit, whole pack arrangement is shown in " Fig. 8 E ", data and end from beginning to wrapping, these can the ASK modulation system be reached, and do not have the wrong problem of bit identification; In addition, wireless module can adopt radio frequency (RF) or infrared ray (IR) module.So mouse and the keyboard bag time span under the design can be limited within 6 milliseconds, can meet above-mentioned transmission restriction.
Oneself roughly defines above-mentioned bag content and finishes, and next, will introduce bag data structure of the present invention in more detail, please refer to " Fig. 9 ", the bag schematic diagram data that mouse transmits.Each byte has comprised 8 bits since the present invention to set bit " 0 " different with the time span of bit " 1 ", so the data content of each byte is between 480-320 microsecond (μ s).And the bag data structure length of mouse is about 3.5 milliseconds (ms), and the packet length that mouse is sent is about 24ms.
Please refer to " Figure 10 ", the bag schematic diagram data of keyboard receive.Each byte has comprised 8 bits since the present invention to set bit " 0 " different with the time span of bit " 1 ", so, the data content of each byte about the 480-320 microsecond (μ s〉between.And the bag data structure length of keyboard is about 2.5 milliseconds (ms), and the packet length that keyboard is sent is about 24ms.
After the definition of bag is finished, still have a part to wait to define, that is the present invention is a wireless transmission protocol, so, when vicinity has identical product, the function that can discern mutually must be arranged.The present invention promptly reaches this purpose by the setting of identification code.
Please refer to " Figure 11 ", the present invention increases the coding of single frequency wireless peripherals host-host protocol of ID identification and the system of identification, please refer to comparison " Fig. 2 ".On first data transfer unit 40, second data transfer unit 50 and Data Receiving unit 60, increased an identification key (ID Key) 402,502 and 602 respectively, these identification keys are in order to set each self-corresponding data transfer unit and Data Receiving unit, and its content will give record in the middle of packet.
The button program of identification key can be set at the identification key 402 and 502 of pressing first data transfer unit 40 and second data transfer unit 50 earlier, presses the identification key 602 of Data Receiving unit 60 again, can set new identification code.
Please turn one's head with reference to " Figure 12 " and " Figure 13 ", during setting, in the packet of mouse and keyboard (that is, first data transfer unit 40 and second data transfer unit 50), " setting " bit of first byte is " 1 ", at this moment, the data content that mouse is sent is shown in " Figure 14 ", and is identical with " Figure 12 ", and the data of mouse account for five bytes (Byte), each byte has 8 bits (bit) data, and details are as follows for the data content of each byte:
(count down) reciprocal: comprised three bits, since 7 inverses, bag of every transmission promptly subtracts 1, is 0 up to reciprocal value, represents that then later bag all transmits information with new identification code.
The data content that keyboard is sent is shown in " Figure 15 ", and is identical with " Fig. 2 ", and the data of keyboard account for three bytes (Byte), and each byte has 8 bits (bit) data, and details are as follows for the data content of each byte:
(count down) reciprocal: comprised three bits, since 7 inverses, bag of every transmission promptly subtracts 1, is 0 up to reciprocal value, represents that then later bag is all by new channel transfer information.
Claims (14)
1. the coding and the recognition methods of a single frequency wireless peripherals host-host protocol, it is characterized in that it being that a single-frequency is modulated and set to the utilization amplitude shift keying as the carrier frequency with wireless system of one first data transfer unit, one second data transfer unit and a Data Receiving unit, to do the transmission of a numerical data, comprise the following step:
Set first packet and second packet of the first identification bag and this second data transfer unit and the delivery time of the second identification bag of this first data transfer unit, and repeat in the data time to transmit bag twice in transmitting once to wrap according to a re-transmission method;
Set the digital coding content of this second packet of this first packet of this first data transfer unit and this second data transfer unit, and according to each field contents of the transfer rate setting data bag of this first delivery unit and this second data transfer unit;
Set first identification bag of first delivery unit and the second identification bag of second delivery unit, in order to respectively as the identification of this first data transfer unit and this second data transfer unit, and according to each word content of the transfer rate setting data bag of this first delivery unit and this second data transfer unit; And
Set an identification key, this communication system is to be a digital coding state at ordinary times, be to be a data identification state when pressing this identification key, when this communication system transmits this first packet and this second packet during in this digital coding state, when this communication system transmits this first identification bag and this second identification bag during in this data identification state.
2. the coding of radio peripheral apparatus host-host protocol as claimed in claim 1 and recognition methods, it is characterized in that described first data transfer unit be for a Wireless Keyboard and this second data transfer unit be to be a wireless mouse, and, this first packet be for this second packet of a keyboard data bag be to be a mouse data bag, and, this first identification bag be for this second identification bag of keyboard identification bag be to be mouse identification bag.
3. the coding of radio peripheral apparatus host-host protocol as claimed in claim 1 and recognition methods, the emitter that it is characterized in that described single-frequency are to be radio frequency and infrared transmitting device, and both select one.
4. the coding of radio peripheral apparatus host-host protocol as claimed in claim 1 and recognition methods, it is characterized in that described re-transmission method is in transmitting once this first packet time T 1, after transmitting this first packet for the first time, the A time is transmitted this first packet once more at interval, and this time T 1 is more than or equal to (4A+4B) time; And in transmitting once this second packet time T 3, after transmitting this second packet for the first time, (A+2B) time is transmitted this second packet once more at interval, and this time T 3 is more than or equal to (4A+4B) time; Wherein, time A is for transmitting the time of this second packet, and time B is for transmitting the time of this first packet.
5. the coding of radio peripheral apparatus host-host protocol as claimed in claim 1 and recognition methods, it is characterized in that described re-transmission method is in transmitting once this first identification bag time T 1, after transmitting for the first time this first identification bag, the A time is transmitted this first identification bag once more at interval, and this time T 1 is more than or equal to (4A+4B) time; And in transmitting once these township's two identification bag time T 3, after transmitting for the first time this second identification bag, (A+2B) time is transmitted this second identification bag once more at interval, and this time T 3 is more than or equal to (4A+4B) time; Wherein, time A is for transmitting the time of this second identification bag, and time B is for transmitting the time of this first identification bag.
6. the coding of radio peripheral apparatus host-host protocol as claimed in claim 2 and recognition methods is characterized in that described mouse data bag is for comprising the data structure of five bytes, the composition of each byte and field contents be for:
First byte is to be the bag order, and it comprises: an element type field, in order to the type of identification data transfer unit; The sequence-number field of one packet is in order to recognize the sequence number of this mouse data bag that each is different; One state of charge field is in order to indicate the battery status of this wireless mouse; One set condition field is in order to the transmission state of indication renewal identification code; One middle key mode field is in order to indicate the middle key pressed state of this wireless mouse; One right button mode field is in order to indicate the right button pressed state of this wireless mouse; And a left button mode field is in order to indicate the left button pressed state of this wireless mouse; Wherein, this component type field is two bits, the rest is a bit;
Second byte is the exercise data for the directions X of this wireless mouse, and negative direction is also represented with 2 complement form;
The 3rd byte is the exercise data for the Y direction of this wireless mouse, and negative direction is also represented with 2 complement form;
Nybble is the order for this wireless mouse, and it comprises: the indication field of-directions X motion; The indication field of one Y direction motion; One the 5th bonded state field is in order to indicate the 5th key pressed state of this wireless mouse; One quadruple linkage mode field is in order to indicate the quadruple linkage pressed state of this wireless mouse; And the exercise data field of a Z direction is in order to write down the exercise data of this wireless mouse Z direction; Wherein, the exercise data field of this Z direction is to be three bits, and all the other are a bit; And
The 5th byte is to be check code, in order to check the error condition of this mouse data bag.
7. the coding of radio peripheral apparatus host-host protocol as claimed in claim 2 and recognition methods is characterized in that described keyboard data bag is for comprising the data structure of three bytes, the composition of each byte and field contents be for:
First byte is to be the bag order, and it comprises: an element type field, in order to the type of identification data transfer unit; The sequence-number field of one packet is in order to recognize the sequence number of this mouse data bag that each is different; One state of charge field is in order to indicate the battery status of this wireless mouse; One set condition field is in order to the transmission state of indication renewal identification code; One sets up sign indicating number or gap coding index field, in order to indicate the state that knocks of this key; Whether the index field of one keyboard done state is in order to indicate this Wireless Keyboard still in operation; Wherein, this component type field is two bits, and all the other are a bit;
Second byte is the keypad code for this Wireless Keyboard, in order to write down the button data of this Wireless Keyboard; And
The 3rd byte is to be check code, in order to check the error condition of this keyboard data bag.
8. the coding of radio peripheral apparatus host-host protocol as claimed in claim 2 and recognition methods, it is characterized in that described mouse data bag and this keyboard data bag are to comprise a bit " 0 ", bit " 1 ", unwrap beginning and end-of-packet data, and control this bit " 0 ", bit " 1 ", unwrap the time span of beginning data and end-of-packet data with the amplitude shift keying modulation technique.
9. the coding of radio peripheral apparatus host-host protocol as claimed in claim 8 and recognition methods, the time span that it is characterized in that described bit " 0 " are to be 30 microsecond noble potentials, 30 microsecond electronegative potentials; The time span of this bit " 1 " be for time span be to be the high electricity of 40 microseconds value 40 microsecond electronegative potentials; This time span of unwrapping the beginning data is to be 55 microsecond noble potentials, 55 microsecond electronegative potentials; And the time span of these end-of-packet data is to be 70 microsecond noble potentials, 70 microsecond electronegative potentials.
10. the coding of radio peripheral apparatus host-host protocol as claimed in claim 2 and recognition methods is characterized in that described mouse identification bag is for comprising the data structure of five bytes, the composition of each byte and field contents be for:
First byte is to be the bag order, and it comprises: an element type field, in order to the type of identification data transfer unit; The sequence-number field of one packet is in order to recognize the sequence number of this mouse data bag that each is different; One state of charge field is in order to indicate the battery status of this wireless mouse; One set condition field is in order to the transmission state of indication renewal identification code; One field reciprocal in order to this data identification state is countdowned, and finishes to stop this data identification state in timing; Wherein, this component type field is to be two bits, and this inverse field is to be three bits, and all the other are a bit;
Second byte is the identification code for this wireless mouse, and produces in mode at random;
The 3rd byte is to be a check code:
Nybble is 2 a complement for this check code: and
The 5th byte is to be this check code.
11. the coding of radio peripheral apparatus host-host protocol as claimed in claim 2 and recognition methods is characterized in that described keyboard identification bag is for comprising the data structure of three bytes, the composition of each byte and field contents be for:
First byte is to be the bag order, and it comprises: an element type field, in order to the type of identification data transfer unit; The sequence-number field of one packet is in order to recognize the sequence number of this mouse data bag that each is different; One state of charge field is in order to indicate the battery status of this wireless mouse; One set condition field is in order to the transmission state of indication renewal identification code; One field reciprocal in order to this data identification state is countdowned, and finishes to stop this data identification state in timing; Wherein, this component type field is to be two bits, and this inverse field is to be three bits, and all the other are a bit;
Second byte is the identification code for this Wireless Keyboard, and produces in mode at random; And
Second byte is to be a check code.
12. the coding of radio peripheral apparatus host-host protocol as claimed in claim 2 and recognition methods, it is characterized in that described mouse identification bag and this keyboard identification bag are to comprise a bit " 0 ", bit " 1 ", unwrap beginning and end-of-packet data, and control this bit " 0 ", bit " 1 ", unwrap the time span of beginning data and end-of-packet data with the amplitude shift keying modulation technique.
13. the coding of radio peripheral apparatus host-host protocol as claimed in claim 12 and recognition methods, the time span that it is characterized in that described bit " 0 " are to be 30 microsecond noble potentials, 30 microsecond electronegative potentials; The time span of this bit " 1 " be for time span record be 40 microsecond noble potentials, 40 microsecond electronegative potentials; This time span of unwrapping the beginning data is to be 55 microsecond noble potentials, 55 microsecond electronegative potentials; And the time span of these end-of-packet data is to be 70 microsecond noble potentials, 70 microsecond electronegative potentials.
14. the coding of a single frequency wireless peripherals host-host protocol and the system of identification are that utilization amplitude shift keying modulation technique is controlled the bit delivery time of the packet of this system's transmission, and use the data packet delivery twice of a re-transmission method with system, comprise:
One first data transfer unit is to have one first identification key with the setting as one first identification bag, and has one first wireless transmission unit in order to transmit one first packet that the time of at every turn transmitting this first packet and the first identification bag is to be (4A+4B);
One second data transfer unit is to have one second identification key with the setting as one second identification bag, and has one second wireless transmission unit in order to transmit one second packet that the time of at every turn transmitting this second packet and the second identification bag is to be (4A+4B); And
One Data Receiving unit is to have one the 3rd Data Receiving unit, in order to receive this first packet, the first identification bag, second packet and the second identification bag;
Wherein, B is for transmitting the time of this first packet or this first identification bag, and A is for transmitting the time of this second packet or this second identification bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01134814 CN1200359C (en) | 2001-11-14 | 2001-11-14 | Single frequency wireless peripheral equipment transmission protocol coding and recognizing method and system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 01134814 CN1200359C (en) | 2001-11-14 | 2001-11-14 | Single frequency wireless peripheral equipment transmission protocol coding and recognizing method and system thereof |
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| CN1419199A CN1419199A (en) | 2003-05-21 |
| CN1200359C true CN1200359C (en) | 2005-05-04 |
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| CN 01134814 Expired - Fee Related CN1200359C (en) | 2001-11-14 | 2001-11-14 | Single frequency wireless peripheral equipment transmission protocol coding and recognizing method and system thereof |
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| CN101419514B (en) * | 2007-10-26 | 2010-10-13 | 无锡华润矽科微电子有限公司 | Wireless mouse communication method |
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