IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0489231
(2000-01-21)
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발명자
/ 주소 |
- Sahota, Gurkanwal
- Sani, Mehdi H.
- Shahrokhinia, Sassan
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출원인 / 주소 |
|
대리인 / 주소 |
Wadsworth, Philip R.Brown, Charles D.Pappas, George C.
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인용정보 |
피인용 횟수 :
11 인용 특허 :
7 |
초록
▼
Circuitry that generates an interface signal between a first and a second integrated circuit (IC). The circuitry includes a reference circuit that provides a reference signal, an interface circuit, and a circuit element. The interface circuit is implemented on the first IC, operatively couples to th
Circuitry that generates an interface signal between a first and a second integrated circuit (IC). The circuitry includes a reference circuit that provides a reference signal, an interface circuit, and a circuit element. The interface circuit is implemented on the first IC, operatively couples to the reference circuit, receives the reference signal and a data input, and generates the interface signal. The circuit element is implemented on the second IC, operatively couples to the control circuit, receives the interface signal, and provides an output signal. The reference signal can be a voltage or a current signal, and can be generated in the first or second IC. The interface circuit can be implemented with a current mirror coupled to a switch array, and can be oversampled to ease the filtering requirement. The interface signal can be a differential current signal having multiple (e.g., four, eight, or more) bits of resolution. The circuit element can be, for example, a VGA, a modulator, or other circuits.
대표청구항
▼
Circuitry that generates an interface signal between a first and a second integrated circuit (IC). The circuitry includes a reference circuit that provides a reference signal, an interface circuit, and a circuit element. The interface circuit is implemented on the first IC, operatively couples to th
Circuitry that generates an interface signal between a first and a second integrated circuit (IC). The circuitry includes a reference circuit that provides a reference signal, an interface circuit, and a circuit element. The interface circuit is implemented on the first IC, operatively couples to the reference circuit, receives the reference signal and a data input, and generates the interface signal. The circuit element is implemented on the second IC, operatively couples to the control circuit, receives the interface signal, and provides an output signal. The reference signal can be a voltage or a current signal, and can be generated in the first or second IC. The interface circuit can be implemented with a current mirror coupled to a switch array, and can be oversampled to ease the filtering requirement. The interface signal can be a differential current signal having multiple (e.g., four, eight, or more) bits of resolution. The circuit element can be, for example, a VGA, a modulator, or other circuits. ved by the cleaning blade. 11. A method according to claim 10, further comprising a developing roller dismounting step of dismounting the developing roller from the second frame, wherein the dismounted electrophotographic photosensitive drum is reused or is replaced with a new electrophotographic photosensitive drum, or the dismounted developing roller is reused or replaced with a new developing roller, or the dismounted developing blade is reused or replaced with a new developing blade, or the dismounted cleaning blade is reused or is replaced with a new cleaning blade. 12. A method according to claim 11, wherein the electrophotographic photosensitive drum is reused and is the one which has been removed from said first frame of the process cartridge or is an electrophotographic photosensitive drum dismounted from a first frame of another process cartridge. 13. A method according to claim 11, wherein the cleaning blade in the process cartridge after said coupling step is the one removed from said first frame of the process cartridge or is a cleaning blade dismounted from a first frame of another process cartridge. 14. A remanufacturing method
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