[특허]Apparatus for reducing interference between a computer device and a radio transceiver utilizing separated units with an

[미국특허] Apparatus for reducing interference between a computer device and a radio transceiver utilizing separated units with an 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-013/38
출원번호	US-0268268 (1994-06-30)
발명자 / 주소	Rossi Markku J. (Houston TX)
출원인 / 주소	Compaq Computer Corporation (Houston TX 02)
인용정보	피인용 횟수 : 36 인용 특허 : 9

초록 ▼

Two units are disclosed, one of which is installed in the computer and one of which is located remotely and includes the antenna and radio frequency transmitter and receiver elements. The two units communicate over an infrared (IR) link. The data is transmitted between the two units as real and imaginary components using separate IR signals. By using real and imaginary digitized signals, great flexibility is provided as to the actual contents and protocols capable of being utilized and serial digital data can be provided from the computer and received in the computer using only simple table look-ups. The antenna unit includes personalization by way of differing filters and software to allow it to operate with a plurality of radio channels and protocols. Each unit has a serial number to identify itself and to keep a communication link secure once established. The IR link is established by hitting an initialization switch on each of the two units, at which time they commence transmitting their serial numbers and an acknowledgement process occurs. Once this initialization has occurred and both units have registered the other unit, only communications from the proper serial number provider are accepted. After the initialization phase, data and commands are sent between the two units in a packetized structure which allows error checking as necessary.

대표청구항 ▼

A system for allowing a computer to reliably communicate over a radio frequency channel, the system comprising: a first unit for connecting to the computer for receiving digital data to be communicated from the computer and for providing digital data to be communicated to the computer, said first unit including: first and second infrared (IR) light emitting diodes (LEDs) having different IR wavelengths; first and second IR photodetectors being responsive to different IR wavelengths; transmitting means for converting digital data received from the computer to real and imaginary component digitized streams, said transmitting means connected to said first and second IR LEDs to provide said real component digitized stream to said first IR LED and said imaginary component digitized stream to said second IR LED; and receiving means connected to said first and second photodetectors for converting digital signals received from said first and second IR photodetectors as real and imaginary digitized streams to digital data for providing to the computer; and a second unit separate from said first unit and the computer for transceiving data over the radio frequency channel, said second unit including: an antenna; a transmitter connected to said antenna for providing a radio frequency signal and having an input; a receiver connected to said antenna for receiving a radio frequency signal and having an output; first and second IR photodetectors responsive to different wavelengths and compatible with said wavelengths of said first unit first and second IR LEDs; receiving means connected to said transmitter and to said second unit first and second IR photodetectors for converting said real and imaginary component digitized streams from said second unit first and second photodetectors to an analog signal output to said transmitter; first and second IR LEDs having different wavelengths and compatible with said first unit first and second photodetectors; and transmitting means connected to said receiver and to said second unit first and second IR LEDs for converting the signal provided by said receiver to real and imaginary component digitized streams which are provided to said second unit first and second IR LEDs.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

[미국특허] Apparatus for reducing interference between a computer device and a radio transceiver utilizing separated units with an 원문보기

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[미국특허] Apparatus for reducing interference between a computer device and a radio transceiver utilizing separated units with an 원문보기

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연구과제 타임라인

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이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (36) 인용/피인용 타임라인 분석

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