최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0306840 (2011-11-29) |
등록번호 | US-8717042 (2014-05-06) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 2 인용 특허 : 1059 |
One embodiment includes an I/O multiplexer bus including a signal line coupled to a signal source and multiple line switches, each line switch to couple a corresponding I/O port to the signal line. Switch logic coupled to the I/O multiplexer bus may programmatically switch the multiple line switches
One embodiment includes an I/O multiplexer bus including a signal line coupled to a signal source and multiple line switches, each line switch to couple a corresponding I/O port to the signal line. Switch logic coupled to the I/O multiplexer bus may programmatically switch the multiple line switches to couple at least one of the signal source and measurement circuitry to the respective I/O port.
1. A device, comprising: an I/O multiplexer bus comprising a first signal line coupled to a first signal source and a plurality of line switches, each line switch configured to couple a corresponding I/O port of a plurality of I/O ports to the signal line; andswitch logic coupled to the I/O multiple
1. A device, comprising: an I/O multiplexer bus comprising a first signal line coupled to a first signal source and a plurality of line switches, each line switch configured to couple a corresponding I/O port of a plurality of I/O ports to the signal line; andswitch logic coupled to the I/O multiplexer bus, the switch logic configured to programmatically switch the plurality of line switches to couple at least one of the first signal source and measurement circuitry to the respective I/O port. 2. The device of claim 1, further comprising a capacitive sense interface including one or more externally connected electrical elements, each coupled to a respective I/O port of the plurality of I/O ports. 3. The device of claim 2, wherein the one or more externally connected electrical elements comprises at least one of a capacitance sense button and a slider, wherein each externally connected electrical element represents an individual resolution element of the slider. 4. The device of claim 2, wherein the switch logic is further configured to couple the measurement circuitry to the one or more externally connected electrical elements to acquire a plurality of measurements of a scan to determine an activation of at least one of the externally connected electrical elements of the capacitive sense interface. 5. The device of claim 4, wherein the measurement circuitry comprises a relaxation oscillator circuit configured to process the plurality of measurements of the scan based on electrical input from the at least one of the externally connected electrical elements. 6. The device of claim 5, wherein the relaxation oscillator circuit is configured to determine a change in capacitance of the at least one of the externally connected electrical elements based the plurality of measurements. 7. The device of claim 6, wherein the plurality of measurements include measuring at least one of frequency changes, period changes, and changes in duty cycle of a signal associated with the electrical input from the at least one of the externally connected electrical elements. 8. The device of claim 4, wherein the measurement circuitry comprises a charge transfer measurement circuit coupled to a summing capacitor, the charge transfer measurement circuit configured to process the plurality of measurements of the scan from the summing capacitor, wherein the summing capacitor is configured to receive electrical input comprising charge from the at least one of the externally connected electrical elements. 9. The device of claim 4, wherein the I/O multiplexer bus further comprises a second signal line coupled to a second signal source and the plurality of line switches, the switch logic configured to select between the second line and second signal source based on a selection between a relaxation oscillator circuit and a charge transfer measurement circuit of the measurement circuitry. 10. A capacitive sensing system, comprising: a plurality of single line input/output (I/O) ports, each I/O port coupled to and between a capacitive sense interface and an I/O bus;the I/O bus configurable to couple one or more of the plurality of single line I/O ports to measurement circuitry, the I/O bus comprising a plurality of switches configurable to couple one or more elements of the measurement circuitry to at least one of one or more of the plurality of I/O ports and one or more signal sources; andswitch logic coupled to the I/O bus to programmatically configure the plurality of switches to selectively couple the one or more signal sources, the measurement circuitry and the capacitive sense interface. 11. The system of claim 10, wherein the capacitive sense interface comprises one or more externally connected electrical elements, each electrical element coupled to a respective single line I/O port of the plurality of single line I/O ports. 12. The system of claim 11, wherein switching logic is further configured to couple the measurement circuitry to the one or more externally connected electrical elements in a scan to provide a plurality of measurements to the measurement circuitry to determine an activation of at least one of the externally connected electrical elements of the capacitive sense interface. 13. The system of claim 12, wherein the measurement circuitry comprises a relaxation oscillator circuit configured to process the plurality of measurements. 14. The system of claim 13, wherein the relaxation oscillator circuit is configured to determine a change in capacitance of the at least one of the externally connected electrical elements based the plurality of measurements. 15. The system of claim 14, wherein the plurality of measurements include measuring at least one of frequency changes, period changes, and changes in duty cycle of a signal associated with the electrical input from the at least one of the externally connected electrical elements. 16. The system of claim 12, wherein the measurement circuitry comprises a charge transfer measurement circuit coupled to a summing capacitor, the charge transfer measurement circuit configured to process the plurality of measurements, wherein the plurality of measurements of the scan is based on accumulated charge on the summing capacitor from the at least one of the externally connected electrical elements. 17. A method, comprising, configuring a plurality of switches of an I/O bus using switch logic to couple at least one of one or more of a plurality of single line I/O ports to measurement circuitry and to one or more signal sources; andprogrammatically measuring the capacitance of one or more externally connected electrical elements of a capacitive sense interface coupled to the plurality of single line I/O ports based on the configuring of the plurality of switches. 18. The method of claim 17, wherein the one or more externally connected electrical elements comprises at least one of a capacitance sense button and a slider, wherein each externally connected electrical element represents an individual resolution element of the slider. 19. The method of claim 17, wherein the configuring the plurality of switches of the I/O bus further comprises scanning the capacitive sense interface by iteratively coupling the measurement circuitry and the one or more signal sources to the one or more externally connected electrical elements to acquire a plurality of measurements to determine an activation of at least one of the externally connected electrical elements of the capacitive sense interface.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.