[특허]Compact radio frequency receiver having take-up spool housed earphone conductors

Compact radio frequency receiver having take-up spool housed earphone conductors 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-001/08
출원번호	US-0762758 (1991-09-20)
발명자 / 주소	Luplow Harley M. (300 Woodridge Bloomfield Hills MI 48304)
인용정보	피인용 횟수 : 53 인용 특허 : 0

초록 ▼

A compact, radio frequency receiver apparatus having left and right channel conductors windably disposed within a housing of the apparatus. The left and right channel electrical conductors each further have earphone transducers electrically coupled thereto. The earphone transducers may be manually, removably stored in a plurality of recesses formed in an external surface of the housing. The conductors are windably disposed on a spool within the housing of the apparatus, with the spool being rotatable freely therewithin. A spring operatively associated with the spool exerts a constant biasing force in a rewind direction to tend to constantly urge the spool in the rewind direction. A latching member, manually movable by a user via a pushbutton release member, holds the spool stationary after the conductors have been unwound from the spool an approximate, desired length. The conductors are operatively associated with an FM stereo receiver/amplifier housed on a printed circuit board within the housing of the apparatus. Controls for allowing a user to manually adjust the volume and frequency of the signal received by the FM stereo receiver and amplifier are also provided. In an alternative preferred embodiment the apparatus includes an electrical coupling jack and associated conductor for coupling the apparatus to an independent, external FM stereo receiver unit. The coupling jack may also be removably stored within a recess in the external surface of the housing.

대표청구항 ▼

A compact, portable FM stereo receiver apparatus, said apparatus comprising: independent left and right earphone transducers; a generally circular spindle housing section, said spindle housing section including means for housing independent left and right earphone transducers; a generally circular ratchet housing section operable to cooperatively couple with said spindle housing section, said ratchet housing section and said spindle housing section when coupled together forming means protruding therefrom for independently, removably housing said left and right earphone transducers; a spool rotatably mounted within said ratchet and spindle housing sections; independent left and right channel conductors electrically coupled to said earphone transducers and woundably disposed upon said spool, and operable to be manually unwound from said spool through an opening with at least one of said ratchet and spindle housing sections by a user of said apparatus; a flat coil spring operatively associated with said spindle housing section and said spool for generating a constant biasing force to constantly urge said spool in a rewind direction; a ratchet arm operatively associated with said ratchet housing section for maintaining said spool stationary against said biasing force generated by said flat coil spring after said left and right channel conductors have been unwound by a user an approximate, desired length outwardly of said apparatus; pushbutton release means operatively associated with said ratchet arm for urging said ratchet arm outwardly of said spool to enable said biasing force generated by said flat coil spring to windably rotate said spool in said rewind direction, thereby rewinding said left and right channel conductors upon said spool; an FM stereo receiver disposed within said ratchet and spindle housing sections and operatively associated with said independent left and right channel conductors; and a removable battery for powering said FM stereo receiver and wherein said spool comprises a central wall portion having a plurality of tab members protruding therefrom; and wherein said ratchet arm is operable to ride over said tab portions without interrupting rotating movement of said spool when said left and right channel conductors are manually unwound from said spool, said elongated ratchet arm being operable to abuttingly engage at least one of said tab members when said spool is rotatably urged in said rewind direction by said biasing force from said flat coil spring, to thereby maintain said spool stationary after said left and right channel conductors have been unwound from said spool an approximate, desired length.

이 특허를 인용한 특허 (53)

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Ozawa, Hiromichi; Araki, Shohei, Earphone.
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Lo,Barry, Electrical connection device with a position limiting button.
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Thornton Curtis W., Electronic device with retractable cord.
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Voroba Barry ; Kobylarz Daniel E. ; Zochert Carrie L. ; Maser Steven ; Anderson Marlyn J., Low-feedback compact wireless telephone.
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Christianson,Tristan M.; Thalheimer,Richard J., Media connector.
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Christianson,Tristan M.; Thalheimer,Richard J., Media connector.
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Christianson,Tristan M.; Thalheimer,Richard J., Media connector.
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Koenig, Scott; Conroy, David, Mobile device case with retractor reel assembly for user-provided headphones.
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Anderson, John C.; Anderson, Benjamin, Mobile phone headset recoil device.
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Justiss, Nathaniel B., Multi-function case for portable digital media device.
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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

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Compact radio frequency receiver having take-up spool housed earphone conductors 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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연합인증

Compact radio frequency receiver having take-up spool housed earphone conductors 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (53)

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