[특허]Method and apparatus for feature authorization and software copy protection in RF communications devices

Method and apparatus for feature authorization and software copy protection in RF communications devices 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04L-009/00 H04L-009/32
출원번호	US-0113643 (1993-08-31)
발명자 / 주소	Cooper Gerald M. (Gretna VA)
출원인 / 주소	Ericsson Inc. (Lynchburg VA 02)
인용정보	피인용 횟수 : 140 인용 특허 : 0

초록 ▼

A hardware-software security arrangement enables manufacturers of digital RF communications equipment to provide differently configured products having substantially identical hardware and operational control software. Only authorized units are permitted to activate software-controlled “optional”features. The software is protected against unauthorized modifying, copying and uploading/downloading. The security arrangement allows a manufacturer to control the distribution of functional features and operational software upgrades by requiring a product-specific authorization. Each individual unit has a read-only storage device containing a unique device-specific value. “Checksum”data is uniquely computed by the manufacturer for each individual product unit according to a “feature authorization code”specifying particular authorized functional features and the device specific value by using a particular data transformation. This computed data is stored in the unit. On power-up, the unique checksum data is recalculated by the device and compared to the stored checksum data. The unit enables only the most basic functions if the comparison is unfavorable. If the comparison is favorable, then particular features specified by the “feature authorization code”are enabled. The unit may also be updated in the field to provide additional features by providing the manufacturer with the device serial number, obtaining a newly calculated “checksum”based on the desired additional features, and dynamically downloading this information into the device.

대표청구항 ▼

In a digital radio communications device for transmitting and receiving radio frequency signals of the type including a microprocessor for performing a plurality of radio transceiving functions in response to program control information stored in a memory associated therewith, said program control information including function-enabling data for selectively permitting the operation of various predetermined combinations of transceiving functions, a method for providing function-enabling data that is specifically tailored for an individual communications device and for preventing unauthorized use of said program control information by alteration, duplication or downloading into other products, comprising the following steps of: (a) providing said digital radio communications device with a serially assigned numerical value unique to said digital radio communications device, said assigned value stored within said digital communications device; (b) performing a data transformation operation on selected function-enabling data using said assigned value, said transformation operation performed prior to storing said function-enabling data in said associated memory; (c) storing the transformed function-enabling data in said associated memory along with program information for performing a reverse data transformation operation for reproducing said selected function-enabling data from transformed function-enabling data.

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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
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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Method and apparatus for feature authorization and software copy protection in RF communications devices 원문보기

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Method and apparatus for feature authorization and software copy protection in RF communications devices 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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