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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0010921 (1993-01-29) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 271 인용 특허 : 0 |
A method of and apparatus for telemetering analog and digital data transcutaneously between an implantable medical device and an external receiver, such as between an external programmer and an implantable cardiac pacer. A damped carrier at 175 kilohertz is pulse position modulated by digital data.
A method of and apparatus for telemetering analog and digital data transcutaneously between an implantable medical device and an external receiver, such as between an external programmer and an implantable cardiac pacer. A damped carrier at 175 kilohertz is pulse position modulated by digital data. The data, along with synchronization and identification codes, are positioned into predefined ranges within predefined frames as measured by individual time periods. The data is uniquely identified by the position of one or more bursts of the carrier within the predefined range. An automatically initiated hand shake protocol maintains the link over slight variations in programmer head position with an indicator notifying the operator when repositioning is required. Analog data may be transferred in digital form or alternatively transferred using phase modulation of the carrier bursts. A cyclic redundancy code is used for link error detection. The digital data may be encoded/decoded in bit or byte format using hardware and/or software elements.
An apparatus for transferring data between two medical devices while one of said medical devices is implanted within a patient\s body, comprising: (a) means within a first of said medical devices for defining a plurality of parameters; (b) first encoding means within said first medical device for in
An apparatus for transferring data between two medical devices while one of said medical devices is implanted within a patient\s body, comprising: (a) means within a first of said medical devices for defining a plurality of parameters; (b) first encoding means within said first medical device for initially encoding said plurality of parameters in a first numerical base; (c) second encoding means within said first medical device for further encoding said plurality of initially encoded parameters in said first numerical base in a second, higher numerical base wherein said second encoding means comprises means for encoding said plurality of parameters as a single value in said second numerical base; (d) means coupled to said second encoding means for transferring said further encoded parameters in said second numerical base to a second of said medical devices; (e) means within said second medical device for receiving said further encoded parameters in said second numerical base; (f) first means coupled to said receiving means for decoding said parameters from said further encoded parameters in said second numerical base.
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