RF remote system with drive-away prevention

Claim 2

A security system for preventing unauthorized activation and for providing remote function actuation of a vehicle, the system comprising: a fob transmitter for transmitting coded signals to prevent unauthorized activation and for providing remote function actuation of the vehicle having an initiation signal, said fob transmitter comprising: a first microprocessor for generating a first coded signal to remotely actuate a function within the vehicle; and for generating a second coded signal, to secure the vehicle, in response to receiving a power signal; a first coil for receiving said power signal; a first circuit for transmitting said first and second coded signals; a receiver for receiving said coded signals to prevent unauthorized activation of the vehicle, and for initiating actuation of a vehicle function remotely, said receiver comprising: a second circuit for receiving said first and said second coded signal; a second coil for coupling with said first coil to transmit said power signal to said first coil in response to receiving the initiation signal; and a second microprocessor for determining the validity of said received first coded signal, and for initiating the function remotely being actuated within the vehicle if said received first coded signal is valid; and for determining the validity of said received second coded signal, and for securing the vehicle by generating an activation signal if said received second coded signal is valid.

Claim 3

The system of claim 1, wherein said power signal comprises a third coded signal, said first microprocessor receiving said third coded signal, comparing said third coded signal with a stored code, and generating said second coded signal if said third coded signal is valid.

Claim 4

The system of claim 2, wherein said fob transmitter further comprises: a first impedance for receiving said power signal having a relatively long time constant so as to provide a substantially constant power signal to said first microprocessor; and a second impedance for receiving said power signal having a relatively short time constant so as to enable said first microprocessor to decode said second coded signal.

Claim 5

The system of claim 1, wherein said first microprocessor is powered by said power signal for the purposes of generating and transmitting said second coded signal if said first and second coils are coupled together.

Claim 6

The system of claim 1, wherein said first coil, said first microprocessor, and said first circuit of said fob transmitter are configured within an ignition key associated with the vehicle.

Claim 7

The system of claim 1, wherein said second coil and said second circuit are configured on a bobbin assembly positioned around a steering lock assembly associated with the vehicle.

Claim 8

The system of claim 6, wherein said first coil, said first microprocessor, and said first circuit of said fob transmitter are configured within an ignition key associated with the vehicle; said second coil and said second circuit are configured on a bobbin assembly positioned around a steering lock assembly associated with the vehicle; and said second coil is wound on a bobbin associated with said bobbin assembly and electrical components associated with said first circuit are mounted to a plate of said bobbin such that when said ignition key is inserted into the ignition key assembly, said first and second coils are in close proximity to each other and are separated by an insulated ring associated with said steering lock assembly.

Claim 9

The system of claim 1, wherein said first coil, said first microprocessor, and said first circuit of said fob transmitter are configured within a remote transponder unit; and said remote transponder unit comprises a function switch for activating a particular vehicle function, said first coded signal comprises a function coded signal, and said second microprocessor initiates said particular vehicle function upon determining if said first coded signal and said function coded signal are valid.

Claim 10

A security system for providing vehicle drive-away prevention and remote actuation of a vehicle function, the vehicle having an activation signal, and the security system comprising: a remote fob transponder for transmitting coded signals to remotely actuate the vehicle function, and for transmitting coded signals to prevent unauthorized activation, said remote fob transponder comprising: a first coil for receiving a power signal, said power signal comprising an ID coded signal; a first microprocessor for generating a first coded signal to remotely actuate the vehicle function; and for determining the validity of said ID coded signal, and for generating a second coded signal, in response to said ID coded signal being valid, to secure the vehicle and provide drive-away prevention; a function switch for causing said first microprocessor to combine a vehicle function coded signal reflecting the vehicle function to be remotely actuated with said first coded signal; a first oscillating circuit for imposing said first and second coded signals onto a carrier frequency, and for transmitting said first and second coded signals; a transceiver for receiving coded signals to prevent unauthorized activation of the vehicle, and for initiating actuation of a vehicle function, said transceiver comprising: a second oscillator circuit for receiving said first and second coded signals, and for removing said carrier frequency from said first and second coded signals; a second coil for coupling with said first coil to transmit said power signal to said first coil in response to receiving the activation signal; a second microprocessor for comparing said received first coded signal with a first stored code to determine the validity of said received first coded signal, and for initiating the function remotely being actuated within the vehicle if said received first coded signal is valid; and for generating said ID coded signal with said power signal, for comparing said received first coded signal with a second stored code to determine the validity of said second coded signal, and for generating an ignition signal to secure the vehicle if said second coded signal is valid.

Claim 11

A security system for providing vehicle drive-away prevention and remote actuation of a vehicle function, the vehicle having an activation signal, and the security system comprising: a remote fob transponder for transmitting coded signals to remotely actuate the vehicle function, and for transmitting coded signals to prevent unauthorized activation, said remote fob transponder comprising: a first coil for receiving a power signal, said power signal comprising an ID coded signal; a first microprocessor for generating a first coded signal to remotely actuate the vehicle function; and for determining the validity of said ID coded signal, and for generating a second coded signal, in response to said ID coded signal being valid, to secure the vehicle and provide drive-away prevention; a function switch for causing said first microprocessor to combine a vehicle function coded signal reflecting the vehicle function to be remotely actuated with said first coded signal; a first oscillating circuit for imposing said first and second coded signals onto a carrier frequency, and for transmitting said first and second coded signals; a transceiver for receiving coded signals to prevent unauthorized activation of the vehicle, and for initiating actuation of a vehicle function, said transceiver comprising: a second oscillator circuit for receiving said first and second coded signals, and for removing said carrier frequency from said first and second coded signals; a second coil for coupling with said first coil to transmit said power signal to said first coil in response to receiving the activation signal; a second microprocessor for comparing said received first coded signal with a first stored code to determine the validity of said received first coded signal, and for initiating the function remotely being actuated within the vehicle if said received first coded signal is valid; and for generating said ID coded signal with said power signal, for comparing said received first coded signal with a second stored code to determine the validity of said second coded signal, and for generating an ignition signal to secure the vehicle if said second coded signal is valid.

Claim 12

The system of claim 9, wherein said first microprocessor is powered by said power signal for the purposes of generating and transmitting said second coded signal if said first and second coils are coupled together.

Claim 13

The system of claim 10, wherein said remote fob transponder further comprises: a first impedance for receiving said power signal having a relatively long time constant so as to provide a substantially constant power signal to said first microprocessor; and a second impedance for receiving said power signal having a relatively short time constant so as to enable said first microprocessor to decode said second coded signal.

Claim 14

The system of claim 9, wherein said first coil, said first microprocessor, and said first circuit of said fob transmitter are configured within an ignition key associated with the vehicle; said second coil and said second circuit are configured on a bobbin assembly positioned around a steering lock assembly associated with the vehicle; and said second coil is wound on a bobbin associated with said bobbin assembly and electrical components associated with said first circuit are mounted to a plate of said bobbin such that when said ignition key is inserted into the ignition key assembly, said first and second coils are in close proximity to each other and are separated by an insulated ring associated with said steering lock assembly.

Claim 15

The system of claim 9, wherein said remote fob transponder comprises a plurality of function switches, each function switch of said plurality enabling first microprocessor to transmit a different function data bit code within said first coded signal to enable said second microprocessor to perform different vehicle functions.

Claim 16

The system of claim 9, wherein said first coil, said first microprocessor, and said first circuit of said fob transmitter are configured within a remote transponder unit; and said remote transponder unit comprises a function switch for activating a particular vehicle function, said first coded signal comprises a function coded signal, and said second microprocessor initiates said particular vehicle function upon determining if said first coded signal and said function coded signal are valid.

Claim 17

A remote function actuation and drive away prevention security system for a vehicle having an activation signal, the system comprising: an ignition key remote fob transponder for transmitting coded signals to remotely actuate a vehicle function, and for transmitting coded signals to prevent unauthorized activation of the vehicle, said ignition key remote fob transponder comprising: a first coil for receiving a power signal, said power signal comprising an ID coded signal; a first microprocessor for generating a first coded signal to remotely actuate the vehicle function; and for determining the validity of said ID coded signal, and for generating a second coded signal, in response to said ID coded signal being valid, to secure the vehicle and provide drive-away prevention; a remote function switch for causing said first microprocessor to combine a vehicle function coded signal reflecting the vehicle function to be remotely actuated with said first coded signal; and a first oscillating circuit for imposing said first and second coded signals onto a carrier frequency, and for transmitting said first and second coded signals; and an ignition assembly transceiver unit for receiving coded signals to prevent unauthorized activation of the vehicle, and for initiating actuation of the vehicle function, said transceiver unit comprising: a bobbin assembly comprising: a second oscillator circuit for receiving said first and second coded signals, and for removing said carrier frequency from said first and second coded signals; and a second coil, wound around a bobbin, for coupling with said first coil to transmit said power signal to said first coil in response to receiving the activation signal; and a second microprocessor for comparing said received first coded signal with a first stored code to determine the validity of said received first coded signal, and for initiating the function remotely being actuated within the vehicle if said received first coded signal is valid; and for generating said ID coded signal with said power signal, for comparing said received first coded signal with a second stored code to determine the validity of said second coded signal, and for generating an ignition signal if said second coded signal is valid; and an ignition switch system, having said bobbin assembly positioned thereabout for receiving said ignition signal to secure the vehicle.

Claim 18

A remote function actuation and drive away prevention security system for a vehicle having an activation signal, the system comprising: an ignition key remote fob transponder for transmitting coded signals to remotely actuate a vehicle function, and for transmitting coded signals to prevent unauthorized activation of the vehicle, said ignition key remote fob transponder comprising: a first coil for receiving a power signal, said power signal comprising an ID coded signal; a first microprocessor for generating a first coded signal to remotely actuate the vehicle function; and for determining the validity of said ID coded signal, and for generating a second coded signal, in response to said ID coded signal being valid, to secure the vehicle and provide drive-away prevention; a remote function switch for causing said first microprocessor to combine a vehicle function coded signal reflecting the vehicle function to be remotely actuated with said first coded signal; and a first oscillating circuit for imposing said first and second coded signals onto a carrier frequency, and for transmitting said first and second coded signals; and an ignition assembly transceiver unit for receiving coded signals to prevent unauthorized activation of the vehicle, and for initiating actuation of the vehicle function, said transceiver unit comprising: a bobbin assembly comprising: a second oscillator circuit for receiving said first and second coded signals, and for removing said carrier frequency from said first and second coded signals; and a second coil, wound around a bobbin, for coupling with said first coil to transmit said power signal to said first coil in response to receiving the activation signal; and a second microprocessor for comparing said received first coded signal with a first stored code to determine the validity of said received first coded signal, and for initiating the function remotely being actuated within the vehicle if said received first coded signal is valid; and for generating said ID coded signal with said power signal, for comparing said received first coded signal with a second stored code to determine the validity of said second coded signal, and for generating an ignition signal if said second coded signal is valid; and an ignition switch system, having said bobbin assembly positioned thereabout for receiving said ignition signal to secure the vehicle.

Claim 19

The system of claim 15, wherein said first microprocessor is powered by said power signal for the purposes of generating and transmitting said second coded signal if said first and second coils are coupled together.

Claim 20

The system of claim 15, wherein said ignition key remote fob transponder further comprises: a first impedance for receiving said power signal having a relatively long time constant so as to provide a substantially constant power signal to said first microprocessor; and a second impedance for receiving said power signal having a relatively short time constant so as to enable said first microprocessor to decode said second coded signal.

Claim 21

The system of claim 15, wherein said ignition key remote fob transponder comprises a plurality of function switches, each function switch of said plurality enabling first microprocessor to transmit a different function data bit code within said first coded signal to enable said second microprocessor to perform different vehicle functions.

Claim 22

The system of claim 15, wherein said remote transponder unit comprises a function switch for activating a particular vehicle function, said first coded signal comprises a function coded signal, and said second microprocessor initiates said particular vehicle function upon determining if said first coded signal and said function coded signal are valid.