Animal husbandry – Entomological culture device – Egg treatment – production – or storage
Patent
1991-01-25
1993-05-18
Swiatek, Robert P.
Animal husbandry
Entomological culture device
Egg treatment, production, or storage
606117, 128655, 128899, A01K 6100, A61M 500
Patent
active
052111296
ABSTRACT:
An improved transponder for transmitting an identification of an animal or the like is described which is sufficiently miniaturized to be syringe-implantable, thus avoiding the necessity of surgical procedures. The transponder comprises a coil which receives an interrogation signal and transmits an identification signal in response thereto. The transponder receives the energy required for transmission by inductive coupling to an interrogator. A single integrated circuit chip is provided which detects the interrogation signal, rectifies it to generate power needed for transmission, stores an identification of the transponder and hence of the animal in which it is implanted, and generates a frequency-shift-keyed, Manchester encoded identification signal in response to the interrogation signal. The device transmits the identification signal in real time, that is, immediately upon commencement of the interrogation signal, such that no discrete elements for energy storage are required. The transmission frequency and the bit rate are both determined by integer division of the interrogation signal such that no discrete elements such as crystal oscillators are required for signal generation.
REFERENCES:
patent: 4065753 (1977-12-01), Paul, Jr.
patent: 4909250 (1990-03-01), Smith
patent: 4920670 (1990-05-01), Amick
patent: 4955396 (1990-09-01), Fralick et al.
Bradin John
Koturov Daniel
Loeb Gerald E.
Taylor Vern
Destron/IDI Inc.
Hancock Earl C.
Hughes Aircraft Co.
Swiatek Robert P.
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