Appeal No. 1997-0187 Page 2 Application No. 08/198,671 BACKGROUND The appellant's invention relates to an anti-theft system for automotive electronic devices. An understanding of the invention can be derived from a reading of exemplary claim 17, which is reproduced below. 17. An anti-theft system for a vehicle comprising: a portable remote control unit responsive to actuation of buttons thereon for transmitting a radio frequency signal including a first identification code; a security unit fixedly mounted on the vehicle, the security unit including a receiver for receiving the radio frequency signal, a first memory for storing a second identification code, and a first processor for comparing the received first identification code with the second identification code and for generating a third identification code when the first identification code coincides with the second identification code; and an electronic audio device removably mounted on the vehicle and connectable to the security unit, the electronic audio device including a second memory for storing a fourth identification code and an audio signal generator for transmitting audio signals to an output device, the electronic audio device including a second processor for comparing the third identification code with a fourth identification code and enabling the audio signal generator only when the third identification code coincides with the fourth identification code. The prior art references of record relied upon by the examiner in rejecting the appealed claims are: Sanders et al. (Sanders) 4,754,255 Jun. 28, 1988 Nakano et al. (Nakano) 4,794,268 Dec. 27, 1988 Jacob 4,908,604 Mar. 13, 1990Page: Previous 1 2 3 4 5 6 7 NextLast modified: November 3, 2007