CN1176418C - Hand-held data processing device, information system and external signal transmission method thereof - Google Patents
Hand-held data processing device, information system and external signal transmission method thereof Download PDFInfo
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- CN1176418C CN1176418C CNB011246464A CN01124646A CN1176418C CN 1176418 C CN1176418 C CN 1176418C CN B011246464 A CNB011246464 A CN B011246464A CN 01124646 A CN01124646 A CN 01124646A CN 1176418 C CN1176418 C CN 1176418C
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Abstract
A hand-held data processing device comprises a parallel transmission interface, a serial transmission interface and an expansion interface conversion module with a clock signal, wherein the expansion interface conversion module is respectively coupled with the parallel transmission interface and the serial transmission interface. The expansion interface conversion module samples the parallel transmission signal from the parallel transmission interface according to the clock signal to convert the parallel transmission signal into the serial transmission signal of the serial transmission interface, and samples the serial transmission signal from the serial transmission interface according to the clock signal to convert the serial transmission signal into the parallel transmission signal of the parallel transmission interface, so that the parallel transmission signal and the serial transmission signal are interchanged. The operation clock period of the parallel transmission interface is at least N times of the clock signal period of the expansion interface conversion module, wherein N is the number of parallel transmission signals which can be transmitted by the serial transmission signal in one operation clock period according to the clock signal.
Description
Technical field
The present invention relates to hand (handheld) type massaging device and method for transmitting signals, the transmission method of particularly a kind of handheld massaging device and extended interface outer signal.
Background technology
In the modern society that information alternates fast, in conjunction with the hand held of computing machine, communication, consumer electronics technology or Espresso, personal digital assistant (Personal Digital Assistant, hereinafter to be referred as PDA) etc. hand-held data processor, advantages such as (thin such as business card, p.m.entry, routing) is subjected to consumer's favor widely because volume is light and handy, be easy to carry about with one, can store personal data.In order to allow the device of this class of PDA reach compact purpose, generally be that necessary function is combined in the above-mentioned hand-held data processor, only carry this hand-held data processor at ordinary times and just can satisfy most work requirements, when when needs extended function or the use of prolongation battery, counting, then utilize a kind of expansion to be attached to hand-held data processor with device, make it strengthen battery capacity with device or to connect other external units to increase function via this expansion, this expansion has comprised with device expands cover (jacket) and frame devices such as (cradle).Shown in Figure 1A, one typical hand-held data processor 100 expands with device 200 in conjunction with one according to the direction of arrow, for instance, hand-held data processor 100 has the fluorescent screen 102 of demonstration and operating key 104 at least as PDA, and expand with device 200 can be to adopt personal computer memory card (the Personal Computer MemoryCard International Association of League of Nations, hereinafter referred PCMCIA) interface or compact flash memory bank (Compact Flash, hereinafter referred CF) the expansion cover of interface, in addition, hand-held data processor 100 is made joint by its socket (socket) 106 and expansion with the connector 108 of device 200.To add functional module 300 again and for example have the PC card of pcmcia interface of radio network functions or modem function or the CF card of CF interface, insert the slot 202 (shot) that expands cover according to the direction of arrow, so will make the device of this class of PDA to connect to network and can send and receive e-mail or browse world-wide web, in addition, as plug the CF card that expands memory bank, can also increase the memory capacity of program and archives; In addition, shown in Figure 1B, hand-held data processor 100 is placed in one and is commonly referred to the expansion of frame with on the device 200 ', connect the battery charge that supply socket can make this type of device of PDA by frame, also can carry out RS-232 serial communication transmission via cable 280 and other information handling systems 30 or personal computer line by frame.
Though hand-held data processor can be used device in conjunction with expanding, add functional module to increase function and can connect other, but known hand-held data processor is to adopt parallel (parallel) transmission interface with expanding the extended interface that is connected with device, no matter be to select the CF interface of 50 signal line or the expansion device of the pcmcia interface of 68 signal line for use, shown in Fig. 2 A, the hand-held data processor 100 of this class of PDA all can form the numerous socket 106 of pin count to use device in conjunction with expanding, if add other functions, RS-232 communication interface for example, then socket 106 certainly will need more pin number.Therefore, adopt the parallel transmission interface not only to need numerous pin, improved manufacturing cost, also cause to take sizable space, and increase the difficulty of mechanism design in conjunction with the socket 106 that expands with device as extended interface.In addition, too much pin also can destroy the aesthetic in appearance of hand-held data processor, it is lost its reliss and is that eliminate in market.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of extended interface modular converter of handheld massaging device, can reduce the pin number and the transmission method of extended interface.
Another object of the present invention provides a kind of handheld massaging device, with line number signal and the transmission method of serial transmission mode to simplify extended interface.
For achieving the above object, the invention provides a kind of handheld massaging device, comprise that hand-held data processor, first expands with device, the first extended interface modular converter and the second extended interface modular converter.Hand-held data processor has the first parallel transmission interface and first serial (serial) transmission interface.First expansion then has the second parallel transmission interface and second serial transmission interface with device, the second parallel transmission interface adopts the transmission standard identical with the first parallel transmission interface to intercourse data, do accordingly with first serial transmission interface by second serial transmission interface and to be connected, hand-held data processor can be expanded via first connect one with device and add functional module.The first extended interface modular converter is respectively coupled to the first parallel transmission interface and first serial transmission interface, is used for a plurality of first parallel transmission signals that come from the first parallel transmission interface are done exchange with at least one the first serial transmission signal that comes from first serial transmission interface.Similarly, the second extended interface modular converter is respectively coupled to the second parallel transmission interface and second serial transmission interface, is used at least one the second serial transmission signal that comes from second serial transmission interface is done exchange with a plurality of second parallel transmission signals that come from the second parallel transmission interface.Hand-held data processor also can expand with the 3rd serial transmission interface of device by above-mentioned first serial transmission interface and one second does coupling accordingly, makes hand-held data processor can communicate by letter with the external information disposal system and swap data by linking second expansion with device.Wherein, hand-held data processor still can independently operate after separating with device with expanding.
The present invention also provides a kind of hand-held data processor to comprise: one first parallel transmission interface; One first serial transmission interface; And one first extended interface modular converter, be respectively coupled to this first parallel transmission interface and this first serial transmission interface, and this first extended interface modular converter has a clock signal, wherein, this first extended interface modular converter is according to this clock signal, sampling comes from a plurality of first parallel transmission signals of this first parallel transmission interface, to be converted at least one first serial transmission signal of this first serial transmission interface, and according to this clock signal sampling comes from least one first serial transmission signal of this first serial transmission interface, to be converted to a plurality of first parallel transmission signals of this first parallel transmission interface, to make between this first parallel transmission signal and this first serial transmission signal and do exchange; Wherein, an operating clock cycle of this first parallel transmission interface be this clock signal period N doubly, wherein N be this first serial transmission signal in this operating clock the cycle, the number of this first parallel transmission signal that can transmit according to this clock signal.
The present invention also provides a kind of outer signal transmission method of hand-held data processor, this data processing equipment has an external transmission interface, make this data processing equipment transmit outer signal with at least one external device, its method comprises the following steps: one group of external parallel signal that this data processing equipment produces is converted to first group of external serial signal, and this first group of external serial signal is able to switchable mode and transfers to this external transmission interface; Second group of external serial signal that this data processing equipment is produced is able to switchable mode and transfers to this external transmission interface; Produce one and switch signal, this data processing equipment is switched between the two at this first group or second group of external serial signal, and make this external transmission interface transmitted this first group or second group of external serial signal both one of; Wherein, the pin count of this external transmission interface is less than the required pin count of this external parallel signal of generation.
The present invention is mode of serial transmission with expanding the extended interface that is connected with device from the parallel transmission mode switch with hand-held data processor, so reduced the socket pin count of the hand-held data processor of this class of PDA widely, shown in Fig. 2 B, the socket 106 ' of the hand-held data processor 100 of employing serial transmission extended interface is because the pin count minimizing, reach the purpose of saving the space, make mechanism design become more easy, also reduce the cost of making, also can reach the succinct benefit of outward appearance.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, be described in detail below:
To be a hand-held data processor according to the direction of arrow expand in conjunction with one Figure 1A uses schematic representation of apparatus;
Figure 1B is that a hand-held data processor is placed in the synoptic diagram on another expansion usefulness device;
Fig. 2 A is the socket synoptic diagram that tradition adopts the hand-held data processor of parallel transmission extended interface;
Fig. 2 B is the socket synoptic diagram of the present invention's hand-held data processor of adopting the serial transmission extended interface;
Fig. 3 is the calcspar of first embodiment of the invention;
Fig. 4 A is the calcspar of second embodiment of the invention;
Fig. 4 B provides the pick-up unit synoptic diagram of selecting signal SEL;
Fig. 5 A is the key diagram that parallel signal is converted to serial signal;
Fig. 5 B is the key diagram that serial signal is converted to parallel signal.
Embodiment
With reference to first embodiment of figure 3, handheld infosystem 10 comprises handheld massaging device 20 and adds functional module 300 that wherein handheld massaging device 20 comprises that also hand-held data processor 100 and first expands with device 200.Hand-held data processor 100 has the first parallel transmission interface 110 and first serial transmission interface 150.First expansion has the second parallel transmission interface 210 and second serial transmission interface 250 with 200 in device, the second parallel transmission interface 210 adopts the transmission standard identical with the first parallel transmission interface 110 to intercourse data, do accordingly with first serial transmission interface 150 by second serial transmission interface 250 and to be connected, make hand-held data processor 100 connect one with device 200 and add functional module 300 via this expansion.After separating with device 200, the hand-held data processor 100 and first expansion still can independently operate.
Be arranged at the first extended interface modular converter 130 in the hand-held data processor 100, be respectively coupled to the first parallel transmission interface 110 and first serial transmission interface 150, be used for a plurality of first parallel transmission signals 120 that come from this first parallel transmission interface 110 are done exchange with at least one the first serial transmission signal 140 that comes from first serial transmission interface 150.Similarly, being arranged at first expands with the second extended interface modular converter 230 in the device 200, be respectively coupled to the second parallel transmission interface 210 and second serial transmission interface 250, be used at least one the second serial transmission signal 240 that comes from second serial transmission interface 250 is done exchange with a plurality of second parallel transmission signals 200 that come from the second parallel transmission interface 210.
The first extended interface modular converter 130 comprises first clock signal clk 1 be used for the taking a sample first parallel transmission signal 120 and the first serial transmission signal 140, on the other hand, the second extended interface modular converter 230 comprises second clock signal CLK2 be used for the taking a sample second parallel transmission signal 220 and the second serial transmission signal 240, the cycle of first clock signal clk 1 equals the cycle of second clock signal CLK2 in fact, and second clock signal CLK2 preferably is synchronized with first clock signal clk 1.Wherein the operating clock CLKp cycle of the first parallel transmission interface 110 be at least 1 cycle of first clock signal clk N doubly, N is that each bar first serial transmission signal wire is in this operating clock CLKp the cycle, according to the number of 1 first parallel transmission signal that can transmit of first clock signal clk.For instance, one first serial transmission signal is responsible for transmitting 8 among the first parallel transmission signal, then the pcmcia interface of 68 signal line deduction power supply and ground wire only need 8 first serial transmission signal wires just can receive and transmit the signal of PCMCIA fully.In addition, the data signal line of parallel transmission interface generally all has the characteristic of transmitted in both directions, so import data transfer direction signal DIR1 and DIR2 respectively in first, second extended interface modular converter 130 and 230, making it is the serial transmission signal according to the data transfer direction signal with the parallel transmission conversion of signals, or is the parallel transmission signal with the serial transmission conversion of signals.
Second embodiment shown in Fig. 4 A, above-mentioned hand-held data processor 100 can by first serial transmission interface 150 in conjunction with one second expand with device 200 ', do exchanges data with mode and another information handling system 30 of serial communication.The function that hand-held data processor 100 itself promptly has as the RS-232 serial communication, for making hand-held data processor 100 original serial digital signals of communication and above-mentioned first serial transmission interface, the 150 shared pin counts that expand socket with further minimizing, can be provided with one at hand-held data processor 100 and switch unit 170, first port one 72 of switch unit 170 is coupled in the first serial transmission signal 140 of the first extended interface modular converter 130, second port one 74 is coupled in 76 of at least one serial digital signal of communication 160, the three port ones coming from hand-held data processor 100 via the 4th serial transmission signal 140 ' be coupled in first serial transmission interface 150 of the first extended interface modular converter 130.Wherein, the serial digital signal of communication 160 of hand-held data processor 100 can be the RS-232 serial communication signal with 9 signal line, and second expands with device 200 ' then the have feature of RS-232 serial communication frame.In addition, second expands with device 200 ' can consider to be combined in first among first embodiment expands with 200 li in device, with shared same serial transmission interface.
Shown in Fig. 4 B, the present invention utilizes a pick-up unit 180 to detect the user mode of above-mentioned hand-held data processor 100 in modes such as electronics, machinery or optics, selects signal SEL to input to switch unit 170 to produce.Pick-up unit 180 detections and resolution and hand-held data processor 100 links be first expand with device 200 or second expand with device 200 ', produce according to this and select signal SEL.According to this embodiment, the height of a pin current potential of first serial transmission interface 150 is to be defined as first state and second state of selecting signal SEL, in order to switch two kinds of transmission modes.When second expands with device 200 ' with hand-held data processor 100 bindings, this switching pin current potential will be drawn high, the selection signal SEL that inputs to switch unit 170 becomes first state, make second port one 74 of switch unit 170 be connected with the 3rd port one 76, so, the 4th serial transmission signal 140 of the serial digital communication signal 160 of hand-held data processor 100 and first serial transmission interface 150 ' between data can do exchange; On the other hand, the second expansion device 200 ' when separating with hand-held data processor 100, this switching pin current potential is dragged down, the selection signal SEL that inputs to switch unit 170 becomes second state, make first port one 72 of switch unit 170 be connected with the 3rd port one 76, that is to say that the signal of the first parallel transmission interface 110 still can be done exchange with the signal of first serial transmission interface 150.So,, can make handheld massaging device 20 have automatic shifting function, make things convenient for the user to operate by a pin of first serial transmission interface 150.All those skilled in the art select signal SEL to expand to expand with device 200 ' with hand-held data processor 100 with device 200 or second first to be bonded with each other or generation when breaking away from when extending with regard to this embodiment, making.If another information handling system 30 that is connected with handheld massaging device 20 is followed the RS-232 interface standard, then second expands with device 200 ' still comprise RS-232 Transmit-Receive Unit 260 and RS-232 connector 270.The 3rd serial transmission signal 240 that RS-232 Transmit-Receive Unit 260 is come the 3rd serial transmission interface 250 ' coupling ' do electric conversion to meet the RS-232 interface standard.RS-232 connector 270 is coupled in RS-232 Transmit-Receive Unit 260, makes handheld massaging device 20 connect a cable 280 via this connector 270 and does exchanges data with another information handling system 30.
Fig. 5 A～5B illustrates that the first extended interface modular converter, 130 parallel signals change the principle of serial signal and serial signal commentaries on classics parallel signal, and the second extended interface modular converter 230 is to utilize same principle, therefore repeats no more.CLKp is the operating clock of the first parallel transmission interface 110, and CLK1 is the sampling clock of modular converter, P
0～P
7Represent 8 signal line in the first parallel transmission signal 120, S
nRepresent 1 signal line in the first serial transmission signal.Among Fig. 5 A, when DIR1 is first state (noble potential), the indication modular converter will transfer the signal of serial line interface from the signal of parallel interface to, as shown in the figure, and P
0～P
7In the cycle of a CLKp, be loaded with B respectively
0～B
7Data content, and modular converter according to CLK1 to P
0～P
7Do sampling, at each CLK1 P that takes a sample in turn in the cycle
0～P
7In a signal line, sampling result is written into S
nThe serial transmission signal, in order to allow 1 serial signal finish the data content that transmits N bar parallel signal line in the cycle of a CLKp, the operating clock CLKp cycle of the first parallel transmission interface is at least N times of clock signal period CLK1, N=8 in this example.Among Fig. 5 B, when DIR1 is second state (electronegative potential), the indication modular converter will transfer the signal of parallel interface from the signal of serial line interface to, as shown in the figure, modular converter according to CLK1 at each CLK1 S that takes a sample in the cycle
nThe serial transmission signal is written into P in turn with each sampling result
0～P
7, at the time point of ts, 8 signal line P in the first parallel transmission signal 120
0～P
7Be loaded with B respectively
0～B
7Data content, in order in the cycle of a CLKp, to allow N data transfer of content of 1 serial signal to N bar parallel signal line, the operating clock CLKp cycle of the first parallel transmission interface 110 is at least N times of clock signal period CLK1, similarly, and N=8 in this example.All those skilled in the art, when knowing for ease of signal Processing, the conversion multiple value N of above-mentioned parallel signal and serial signal is preferable with even number, and the number of the interface pins number that can reduce according to the institute desire is changed, and the required clock signal frequency of interface modular converter also can cooperate N value to do suitably to change.If the N value is bigger, required interface pins number in order to the transmission parallel signal is just fewer, and the effect that the present invention can produce just significantly.Right if the N value is too big, the required clock signal frequency of interface modular converter just may be increased to certain high frequency, and hand-held data processor is caused bad galvanomagnetic effect (electromagnetic interference).For having 68 pins, the about 8MHz of operating frequency with interior pcmcia interface, after the above-mentioned consideration of balance, it is 8 that the present invention draws preferable N value, and the required clock signal frequency of interface modular converter can be made as 50MHz.
Comprehensive the above, the present invention is mode of serial transmission with the extended interface that expansion is connected with device from the parallel transmission mode switch with hand-held data processor, and has made up the RS-232 serial communication signal.Keeping original parallel transmission interface and RS-232 serial communication function and still keeping under the situation of transfer efficiency originally, according to extended interface socket of the present invention, comprise power supply and ground wire, only need less than 20 pins, so significantly reduced the socket pin count of the hand-held data processor of this class of PDA, reach the purpose of saving the space, make mechanism design become more easy, also reduce the cost of making.Moreover the present invention keeps original parallel transmission interface, to existing employing parallel transmission interface add functional module and equipment is still possessed compatibility.
Though the present invention discloses as above with a specific embodiment; so it is only in order to be easy to illustrate technology contents of the present invention; and be not with narrow sense of the present invention be defined in this embodiment; any those skilled in the art; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention should be with being as the criterion that the claim scope is defined.
Claims (28)
1. a hand-held data processor comprises:
One first parallel transmission interface;
One first serial transmission interface; And
One first extended interface modular converter is coupled to this first parallel transmission interface and this first serial transmission interface, and this first extended interface modular converter has one first clock signal,
Wherein, this first extended interface modular converter is according to this clock signal, sampling comes from a plurality of first parallel transmission signals of this first parallel transmission interface, to be converted at least one first serial transmission signal of this first serial transmission interface, and according to this clock signal sampling comes from least one first serial transmission signal of this first serial transmission interface, to be converted to a plurality of first parallel transmission signals of this first parallel transmission interface, to make between the described first parallel transmission signal and this first serial transmission signal and do exchange;
Wherein, an operating clock cycle of this first parallel transmission interface be this clock signal period N doubly, wherein N be this first serial transmission signal in this operating clock the cycle, the number of this first parallel transmission signal that can transmit according to this clock signal.
2. hand-held data processor as claimed in claim 1, wherein this device expands with the device coupling by described first serial transmission interface and one first, makes this hand-held data processor connect one with device via this first expansion and adds functional module.
3. hand-held data processor as claimed in claim 2, wherein said first expansion comprises with device:
One second parallel transmission interface adopts the transmission standard identical with this first parallel transmission interface to intercourse data;
One second serial transmission interface is done accordingly with above-mentioned first serial transmission interface by this second serial transmission interface and to be connected; And
One second extended interface modular converter, be respectively coupled to this second parallel transmission interface and this second serial transmission interface, this second modular converter is used at least one the second serial transmission signal that comes from this second serial transmission interface is done exchange with a plurality of second parallel transmission signals that come from this second parallel transmission interface.
4. hand-held data processor as claimed in claim 3, the wherein said second extended interface modular converter comprises a second clock signal, described a plurality of second parallel transmission signal and the described second serial transmission signal are used for taking a sample, the cycle of described first clock signal equals the cycle of this second clock signal, and this second clock signal Synchronization is in described first clock signal.
5. hand-held data processor as claimed in claim 1, wherein said N value is 8.
6. hand-held data processor as claimed in claim 1, the wherein said first serial transmission signal are responsible for transmitting 8 among described a plurality of first parallel transmission signal.
7. hand-held data processor as claimed in claim 1 also comprises:
One switches the unit, have one first port, one second port and one the 3rd port, this first port is coupled in the described first serial transmission signal of the described first extended interface modular converter, this second port is coupled at least one the serial digital signal of communication that comes from described hand-held data processor, and the 3rd port is coupled in described first serial transmission interface; And
One selects signal to input to this switch unit, and this switch unit is done switching according to this selection signal between this first port and this second port, make the 3rd port to be connected with this first port or this second port.
8. hand-held data processor as claimed in claim 7, this device expands with one the 3rd serial transmission interface of device by described first serial transmission interface and one second does coupling accordingly, by link this second expansion with device make described hand-held data processor can with an outside information handling system communication and a swap data.
9. hand-held data processor as claimed in claim 8, wherein said second expands when using device and described hand-held data processor to link, described selection signal becomes first state, makes described second port of described switch unit be connected with described the 3rd port.
10. hand-held data processor as claimed in claim 8, wherein said second expands when using device to separate with described hand-held data processor, described selection signal becomes second state, makes described first port of described switch unit be connected with described the 3rd port.
11. hand-held data processor as claimed in claim 8, wherein said second expansion comprises with device:
One signal transmitting and receiving unit is used for the serial digital communication signal that described the 3rd serial transmission interface coupling is come is done electric conversion; And
A connector is coupled in this signal transmitting and receiving unit, makes described hand-held data processor do exchanges data via this connector and described information handling system.
12. hand-held data processor as claimed in claim 11, the above-mentioned serial digital signal of communication of wherein said hand-held data processor is a RS-232 serial communication signal, described second expansion is a RS-232 serial communication frame with device, described signal transmitting and receiving unit is a RS-232 Transmit-Receive Unit, and described connector is a RS-232 connector.
13. a handheld massaging device comprises:
One hand-held data processor has one first parallel transmission interface and one first serial transmission interface;
One expansion device, have one second parallel transmission interface and one second serial transmission interface, this second parallel transmission interface adopts the transmission standard identical with this first parallel transmission interface to intercourse data, do accordingly with this first serial transmission interface by this second serial transmission interface and to be connected, make this hand-held data processor connect one with device and add functional module via this expansion;
One first extended interface modular converter, be respectively coupled to this first parallel transmission interface and this first serial transmission interface, this first modular converter is used for a plurality of first parallel transmission signals that come from this first parallel transmission interface are done exchange with at least one the first serial transmission signal that comes from this first serial transmission interface; And
One second extended interface modular converter, be respectively coupled to this second parallel transmission interface and this second serial transmission interface, this second modular converter is used at least one the second serial transmission signal that comes from this second serial transmission interface is done exchange with a plurality of second parallel transmission signals that come from this second parallel transmission interface;
Wherein, this hand-held data processor with still can independently operate after this expansion separates with device.
14. handheld massaging device as claimed in claim 13, the wherein said first extended interface modular converter comprise one first clock signal be used for taking a sample described a plurality of first parallel transmission signal and the described first serial transmission signal.
15. handheld massaging device as claimed in claim 14, the one operating clock cycle of the wherein said first parallel transmission interface is N a times of described first clock signal period, wherein N be the described first serial transmission signal in this operating clock the cycle, the number of described a plurality of first parallel transmission signals that can transmit according to described first clock signal.
16. handheld massaging device as claimed in claim 15, the wherein said second extended interface modular converter comprises a second clock signal be used for taking a sample described a plurality of second parallel transmission signal and the described second serial transmission signal, the cycle of described first clock signal equals the cycle of this second clock signal, and this second clock signal Synchronization is in described first clock signal.
17. handheld massaging device as claimed in claim 15, wherein said N value is 8.
18. handheld massaging device as claimed in claim 15, wherein said one first serial transmission signal are responsible for transmitting 8 among described a plurality of first parallel transmission signal.
19. handheld massaging device as claimed in claim 16, wherein said one second serial transmission signal are responsible for transmitting 8 among described a plurality of second parallel transmission signal.
20. handheld massaging device as claimed in claim 13 also comprises:
One switches the unit, be arranged at described hand-held data processor, have one first port, one second port and one the 3rd port, this first port is coupled in the described first serial transmission signal of the described first extended interface modular converter, this second port is coupled at least one the serial digital signal of communication that comes from described hand-held data processor, and the 3rd port is coupling in described first serial transmission interface of the described first extended interface modular converter; And
One pick-up unit, be used to detect the user mode of described hand-held data processor, select signal to input to this switch unit to produce one, this switch unit is done switching according to this selection signal between this first port and this second port, make the 3rd port to be connected with this first port or this second port;
Wherein, described hand-held data processor can expand with one the 3rd serial transmission interface of device by described first serial transmission interface and one second does coupling accordingly, makes described hand-held data processor can communicate by letter with an outside information handling system and swap data by linking this second expansion with device.
21. handheld massaging device as claimed in claim 20, the described serial digital signal of communication of wherein said hand-held data processor is a RS-232 serial communication signal, and described second expansion is a RS-232 serial communication frame with device.
22. handheld massaging device as claimed in claim 20, wherein said pick-up unit is used to detect and resolution and described hand-held data processor link is described first to expand to expand with device or described second and use device, produces described selection signal according to this.
23. a handheld infosystem comprises:
One hand-held data processor has the first parallel transmission interface and one first serial transmission interface;
One first expands and use device, has one second parallel transmission interface and one second serial transmission interface, and this first and second serial transmission interface is connected to each other, and is used for transmitting parallel signal between this hand-held data processor and this first expansion are with device; And
One adds functional module, has one the 3rd parallel transmission interface, this the second and the 3rd parallel transmission interface is connected to each other, be used at this hand-held data processor, this first expands to add with device and this and transmits parallel signal between functional module, this adds the function of extendible this hand-held data processor of functional module;
Wherein, the parallel signal of this first parallel transmission interface is to be converted to the interface serial signal by one first extended interface modular converter, transfers to this first serial transmission interface and exports this to and first expand and to use device; First to expand with device be that the interface serial signal that this second serial transmission interface is certainly imported is converted to parallel signal by one second extended interface modular converter for this, transfers to the second parallel transmission interface and export this to and add functional module.
24. handheld infosystem as claimed in claim 23, it also comprises one second expansion device, this second expansion is external to another data handling system and has one the 3rd serial transmission interface with device, this the first and the 3rd serial transmission interface is connected to each other, and is used for transmitting serial signal each other at this hand-held data processor and this another data handling system.
25. handheld infosystem as claimed in claim 24, wherein this hand-held data processor comprises that also one switches the unit, make this hand-held data processor switch to this and first expand and to transmit parallel signal, or switch to this and second expand and transmit serial signal with device with device.
26. handheld infosystem as claimed in claim 25, wherein this first expansion activates this switch unit with device or this second expansion with device when combining with this hand-held data processor or breaking away from, first expand and to transmit parallel signal to make this hand-held data processor automatically switch to this respectively, or switch to this and second expand and transmit serial signal with device with device.
27. the outer signal transmission method of a hand-held data processor, this data processing equipment have an external transmission interface, make this data processing equipment and at least one external device transmission outer signal, its method comprises the following steps:
One group of external parallel signal that this data processing equipment is produced is converted to first group of external serial signal, and this first group of external serial signal transfers to this external transmission interface in switchable mode;
Second group of external serial signal that this data processing equipment is produced transfers to this external transmission interface in switchable mode;
Produce one and switch signal so that this data processing equipment switches between the two at this first group and second group of external serial signal, and make this external transmission interface transmitted this first group or second group of external serial signal both one of;
Wherein, the pin count of this external transmission interface is less than the required pin count of this external parallel signal of generation.
28. method as claimed in claim 27, wherein this switching signal is to produce when described external device engages with this data processing equipment or breaks away from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011246464A CN1176418C (en) | 2001-07-24 | 2001-07-24 | Hand-held data processing device, information system and external signal transmission method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB011246464A CN1176418C (en) | 2001-07-24 | 2001-07-24 | Hand-held data processing device, information system and external signal transmission method thereof |
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| CN1399180A CN1399180A (en) | 2003-02-26 |
| CN1176418C true CN1176418C (en) | 2004-11-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100349152C (en) * | 2004-07-08 | 2007-11-14 | 华为技术有限公司 | Interface device |
| US7831854B2 (en) | 2006-03-21 | 2010-11-09 | Mediatek, Inc. | Embedded system for compensating setup time violation and method thereof |
| CN100395681C (en) * | 2006-08-02 | 2008-06-18 | 华为技术有限公司 | Clock system |
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