Remote control system utilizing signal frequency sequence

Claim 2

A remote control system for remotely controlling an apparatus in response to a remote control signal having a plurality of different frequency components arranged in a predetermined selection of orders, said system comprising: a. means for receiving the remote control signal transmitted thereto; b. frequency selecting means for selecting the different frequency components of said received remote control signal with different frequencies and producing a plurality of selected output signals corresponding to said different frequency components, respectively; c. means for memorizing one of said selected output signals; d. first gating means for gating an output of said memorizing means in response to a subsequent one of said selected output signals; and e. second gating means comprising first and second control signal output terminals and being connected to said fiRst gating means to be enabled by the output of said first gating means during the occurrance of said subsequent one of said output signals and being gated in response to said subsequent one of said selected output signals to supply an output signal through said first output terminal when a first one of said frequency components occurs first and through said second output terminal when a second one of said frequency components occurs first.

Claim 3

A remote control system for remotely controlling an apparatus recited in claim 1, wherein said remote control receiver means further comprises means for resetting said memorizing means in response to a disappearance of said remote control signal.

Claim 4

A remote control system for remotely controlling an apparatus in response to a remote control signal having two different frequency components arranged in a predetermined order, said system comprising: a. means for receiving the remote control signal transmitted thereto; b. frequency selecting means for selecting the different frequency components of said received remote control signal with the different frequencies and producing two selected output signals corresponding to said different frequency components, respectively; c. first means for memorizing one of said selected output signals; d. second means for memorizing the other of said selected output signals; e. first gating means connected to said first memorizing means and to the frequency selecting means for selecting the other of said selected output signals for gating an output signal of said first memorizing means in response to an output signal from said first memorizing means and to a signal corresponding to the other of said selected output signals; and f. second gating means connected to said second memorizing means and to the frequency selecting means for selecting the first of said selected output signals for gating an output signal of said second memorizing means in response to an output signal from said second memorizing means and to a signal corresponding to the one of said selected output signals.

Claim 5

A remote control system for remotely controlling an apparatus in response to a remote control signal having two different frequency components arranged in a predetermined order, said system comprising: a. means for receiving the remote control signal transmitted thereto; b. frequency selecting means for selecting the different frequency components of said received remote control signal with the different frequencies and producing two selected output signals corresponding to said different frequency components, respectively; c. first means for memorizing one of said selected output signals; d. second means for memorizing the other of said selected output signals; e. first gating means connected to said first memorizing means and to the frequency selecting means for selecting the other of said selected output signals for gating an output signal of said first memorizing means in response to an output signal from said first memorizing means and to a signal corresponding to the other of said selected output signals; and f. second gating means connected to said second memorizing means and to the frequency selecting means for selecting the first of said selected output signals for gating an output signal of said second memorizing means in response to an output signal from said second memorizing means and to a signal corresponding to the one of said selected output signals.

Claim 6

A remote control system for remotely controlling an apparatus recited in claim 3, wherein said frequency selecting means includes two band pass filters each having a different resonant frequency and two detecting circuits connected to said band pass filters, respectively, each of said detecting circuits comprising a time constant circuit.

Claim 7

A remote control system for remotely controlling an apparatus recited in claim 4, wherein said remote control receiver means further comprises first and second noise eliminating means connected, respectively, between said first detecting circuit and said first memorizing means and between said second detecting circuit and said second memorizing means for actuating the respective memorizing means only when the respective remote control signal remains within a predetermined period.

Claim 8

A remote control system for remotely controlling an apparatus recited in claim 5, wherein said noise eliminating means comprises a time constant circuit selected to be longer than the time constant of either of said detecting circuits.

Claim 9

A remote control system for remotely controlling an apparatus recited in claim 4, wherein said remote control receiver means further comprises means for resetting said first memorizing means and second memorizing means simultaneously in response to disappearance of said remote control signal.

Claim 10

A remote control system for remotely controlling an apparatus recited in claim 7, wherein said resetting means comprises a time constant circuit selected to be longer than the time constant of either of said detecting circuits.