AMENDED CLAIMS[received by the International Bureau on 18 October 2002 (18.10.2002); original claims 1, 14 and 25 amended; original claims 8 and 16 cancelled; remaining claims unchanged (16 pages)]
1. (amended) A foot-operated input device coupled between a hand-operated keyboard and an electrical data processing device and comprising at least one input key operated by a foot, comprising: a first transceiver for receiving a first key scan code from the hand-operated keyboard, wherein the hand-operated keyboard is a conventional keyboard for personal computer; a keyboard matrix to generate first key scan data indicative of an activated key, wherein said keyboard matrix comprises at least one input key; a scan code generator coupled to said keyboard matrix to generate a second key scan code in accordance with the key scan data; a position control panel for extracting X, Y axis position data of pointer that is located on a monitor ; a memory for storing a key allocation table and/or a collision processing routine, wherein the key allocation table comprises key scan code allocated to foot-key and the collision processing routine resolves a situation that the first key scan code collides with the second key scan code; a central processing unit for processing the first key scan code and/or the second key scan code with reference to the key allocation table and/or the collision processing
87 routine and producing a third key scan code with reference to a predetermined criterion, and producing position control instruction in accordance with the X, Y axis position data from the position control panel; and a second transceiver coupled to said central processing unit to transmit the third key scan code and position control instruction to said electrical data processing device and receiving reallocated key from said electrical data processing device.
2. The device stated in claim 1, wherein the input key is a non-character key or combination of keys .
3. The device stated in claim 1, wherein the predetermined criterion is the following: ■ ■ when the second key scan code is not inputted, if the first key scan code is inputted, then the first scan code is directly outputted without processing, when the second key scan code is inputted, if the second key scan code is in accordance with a conversion key with reference to the key allocation table, then the second key scan code is directly outputted without processing, when the second key scan code is inputted, if the second key scan code is in accordance with an extension key with reference to the key allocation table and the first
88 key scan code is inputted after the second key scan code, then the third key scan code that is the same key scan code indicative of an extension key and a character key generated by said hand-operated keyboard is generated and outputted, and when the second key scan code is inputted, if the second key scan code is in accordance with an extension key with reference to the key allocation table, the first key scan code is inputted after the second key scan code and the first key scan code collide with the second key scan code, then the third key scan code is generated according to the collision processing routine and outputted.
4. The device stated in claim 1, wherein said second transceiver coupled to said electrical data processing device via wireless link transmits and receives a wireless key scan code and the reallocated key.
5. The device stated in claim 4, wherein the wireless key scan code comprises the third key scan code; a keyboard identifier that said electrical data processing device can recognize said foot-operated input device; channel information, which channel is used to communicate between said foot- operated input device and said electrical data processing device via wireless link; and
89 an error checksum for correcting errors.
6. The device stated in claim 1, wherein said central processing unit can change a key scan code in the key allocation table by the use of the reallocated key received by said second transceiver.
7. The device stated in claim 1, wherein the collision processing routine is the following: when the second key scan code is inputted, if the key scan code outputted from said hand-operated keyboard and the second key scan code are indicative of the same extension key, then the second key scan code is disregarded and the key scan code outputted from said hand-operated keyboard is directly outputted without processing.
8. (cancelled)
9. A method for processing inputted data in a foot-operated input device that is coupled between a hand-operated keyboard and electrical data processor, and comprises at least one input key device operated by a foot, said method comprising the following steps: determining whether there is a key scan code outputted from said hand-operated
90 keyboard or said foot-operated input device; in response to the determination, if there is a first key scan code outputted from said hand-operated keyboard, then outputting the first key scan code, and if there is a second key scan code outputted from said foot-operated input device, then identifying an attribute of the second key scan code; in the response to the identification, if the attribute of the second key scan code is a conversion key, then outputting the second key scan code, and if the attribute of the second key scan code is an extension key, then awaiting a third key scan code from said hand- operated keyboard; determining whether there is a collision between the second key scan code and the third key scan code by the use of a collision processing routine; and in response to the determination, outputting the result of processing the second key scan code and the third key scan code.
10. The method stated in claim 9, wherein said foot-operated input device comprises at least one input key, wherein said input key is indicative of a key on said hand- operated keyboard.
11. The method stated in claim 10, wherein said input key has an attribute of a non-
91 character key, wherein the non-character key comprises conversion key and extension key.
12. The method stated in claim 9, wherein said method further comprises receiving the reallocated key in accordance with input key of said foot-operated input device; and reallocating said input key with the reallocated key.
13. An input device for an electrical data processing device, which input device can be operated by hand and/or foot, comprising: a foot-operated input device for producing a first key scan code in response to a key input by a user, wherein said foot-operated input device comprises at least one of a first input key; and * ' ■ ■. ■■ - ■ ■ a hand-operated input device coupled to said foot-operated input device to produce a second key scan code in response to a key input by the user, produce a third key scan code by processing the first key scan code and/or the second key scan code with reference to a predetermined criterion and output the third key scan code to said electrical data processing device.
14. (amended) A foot-operated input device coupled to a hand-operated input
92 device, comprising: a keyboard matrix for producing key scan data indicative of an activated key, wherein said keyboard matrix comprises at least one input key; a scan code generator coupled to said keyboard matrix to generate a first key scan code in accordance with the key scan data; and a position control panel for extracting X, Y axis position data of pointer that is located on a monitor ; a transceiver for transmitting the first key scan code and X, Y axis position data of point to said hand-operated input device
15. The device stated in claim 14, wherein the input key is a non-character key or a combination of keys.
16. (cancelled)
17. A hand-operated input device coupled between a foot-operated input device and an electrical data processing device and comprising a plurality of input keys operated by hands, comprising: a first transceiver for receiving a first key scan code from said foot-operated input device; a keyboard matrix for producing key scan data indicative of an activated input key, wherein said input keys comprise a plurality of character keys and a plurality of non- character keys; a scan code generator coupled to said keyboard matrix to produce a second key scan code in accordance with the key scan data; a memory for storing a key allocation table and/or a collision processing routine, wherein the key allocation table comprises key scan code allocated to input key of said foot-operated input device and the collision processing routine resolves a situation when the first key scan code collides with the second key scan code; a central processing unit for processing the first key scan code and/or the second key scan code with reference to the key allocation table and/or the collision processing routine and producing a third key scan code with reference to a predetermined criterion; and a second transceiver coupled to said central processing unit to transmit the third key scan code to said electrical data-processing device and receiving reallocated key from said electrical data processing device.
18. The device stated in claim 17 wherein the predetermined criterion is the
94 following: when the first key scan code is not inputted, if the second key scan code is inputted, then the second scan code is directly outputted without processing, when the first key scan code is inputted, if the first key scan code is in accordance with a conversion key with reference to the key allocation table, then the first key scan code is directly outputted without processing, when the first key scan code is inputted, if the first key scan code is in accordance with an extension key with reference to the key allocation table and the second key scan code is inputted after the first key scan code, then the third key scan code that is the same key scan code indicative of an extension key and a character key generated by said hand- operated keyboard is generated and outputted, and when the first key scan code is inputted, if the first key scan code is in accordance with an extension key with reference to the key allocation table, the second key scan code is inputted after the first key scan code and the second key scan code collides with the first key scan code, then the third key scan code is generated according to the collision processing routine and outputted.
19. The device stated in claim 17, wherein said second transceiver coupled to said electrical data processing device via wireless link transmits and receives a wireless key
95 scan code and the reallocated key.
20. The device stated in claim 19, wherein the wireless key scan code comprises the third key scan code; a keyboard identifier that said electrical data processing device can recognize said hand-operated input device; channel information, which channel is used to communicate between said hand- operated input device and said electrical data processing device via wireless link; and an error checksum for correcting errors.
21. The device stated in claim 17, wherein said central processing unit can change a key scan code in the key allocation table by the use of the reallocated key received by said second transceiver.
22. The device stated in claim 17, wherein the collision processing routine is the following: when the first key scan code is inputted, if the first key scan code and the second key scan code are indicative of same extension key, then the first key scan code is disregarded and the second key scan code is directly outputted without processing.
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23. A method for processing inputted data in a hand-operated input device that is coupled between a foot-operated input device and an electrical data processor, and comprises a plurality of input keys operated by hands, said method comprising the steps of: determining whether there is a key scan code outputted from said hand-operated keyboard or said foot-operated input device; in response to the determination, if there is a first key scan code outputted from said foot-operated input device, then identifying an attribute of the first key scan code, and if there is a second key scan code outputted from said hand-operated input device, then outputting the second key scan code; in the response to the identification, if the attribute of the first key scan code is a conversion key, then outputting the first key scan code, and if the attribute of the; first key scan code is an extension key, then waiting a third key scan code from said hand-operated keyboard; determining whether there is a collision between the first key scan code and the third key scan code by the use of a collision processing routine; and in response to the determination, outputting the result of processing the first key scan code and the third key scan code.
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24. The method stated in claim 23, wherein said method further comprises receiving a reallocated key in accordance with input key of said foot-operated input device; and reallocating said input key with the reallocated key.
25. (amended) A foot-operated input system, which can be used together with a hand-operated keyboard in an electrical data processing device, comprising: a foot-operated input device coupled to said electrical data processing device comprising: a body having projection part located on an upper panel thereon, a first socket located on one side of said projecting part; a second socket located on another side apposite to said first socket of said projecting panel; a first foothold comprising a first connector corresponding to said first socket and a keyboard matrix having at least one input key to generate first key scan data indicative of an activated key, wherein said connectors are coupled to the input key to output on/off signal, wherein said body comprising a scan code generator coupled to said keyboard matrix to generate a first key scan
98 code in accordance with the key scan data, a transceiver for transmitting the first key scan code to said electrical data processing device, and a processing unit located in said electrical data processing device that is coupled to said hand-operated keyboard and said foot-operated input device to process the first key scan code and/or a second key scan code generated by said hand-operated keyboard with reference to a predetermined criterion and change a processed key scan code to character code applicable to said electrical data processing device.
26. The system stated in claim 25, wherein said transceiver coupled to said electrical data processing device via wireless link transmits and receives a wireless key scan code and the reallocated key.
27. The system stated in claim 26, wherein the wireless key scan code comprises the first key scan code; a keyboard identifier that said electrical data processing device can recognize said hand-operated input device; channel information, which channel is used to communicate between said hand- operated input device and said electrical data processing device via wireless link; and
99 an error checksum for correcting errors.
28. The system stated in claim 25, wherein said foot-operated input device further comprises a position control device, wherein said position control device controls a pointer that is located on monitor.
29. A method for processing inputted data in a foot-operated input device that can be used together with a hand-operated keyboard and comprises at least one input key operated by a foot, said method comprising the following steps: receiving a key input from said hand-operated keyboard and/or said foot-operated input device; and producing a key scan code in response to the key input, wherein said input key is indicative of a key on said hand-operated keyboard.
30. A method for processing inputted data from a hand-operated keyboard and a foot-operated input device, said method comprising the following steps: determining whether there is a key scan code outputted from said hand-operated keyboard or said foot-operated input device; in response to the determination, if there is a first key scan code outputted from
100 said hand-operated keyboard, then outputting the first key scan code, and if there is a
second key scan code outputted from said foot-operated input device, then identifying an
attribute of the second key scan code;
in the response to the identification, if the attribute of the second key scan code is a
conversion key, then outputting the second key scan code, and if the attribute of the second
key scan code is an extension key, then waiting a third key scan code from said hand-
operated keyboard;
determining whether there is a collision between the second key scan code and the
third key scan code by the use of a collision processing routine; and
in response to the determination, outputting the result of processing the second key
scan code and the third key scan code.
31. The method stated in claim 30, wherein said method further comprises
receiving reallocated key in accordance with input key of said foot-operated input
device; and
reallocating said input key with the reallocated key.
32. The method stated in claim 30, wherein the collision processing routine is the
following:
101 when the second key scan code is inputted, if the key scan code outputted from said hand-operated keyboard and the second key scan code are indicative of same extension key, then the second key scan code is disregarded and the key scan code outputted from said hand-operated keyboard is directly outputted without processing.
33. A foot-operated input device coupled between a hand-operated input device and an electrical data processing device, comprising: a base; a projecting part located on an upper panel of said base; a first socket located on one side of said projecting part; a second socket located on another side opposite to said first socket of said projecting panel; a first foothold having a first connector corresponding to said first socket; a second foothold having a second connector corresponding to said second socket; and at least one input key located on said first foothold and said second foothold, wherein said connector is coupled to said input key to output on/off signal.
102