US3631398A — Tv remote control system

Claim 1

Independent Claim 189 words

A remote control transmitter for transmitting a digital signal for selectively controlling a plurality of remote devices, comprising: first and second actuatable selection switches; means for seriatim providing an ordered sequence of bits with at least one bit corresponding to an information bit and at least one bit corresponding to a decoding bit; means responsive to actuation of either of said switches for generating a decoding pulse during the provision of said decoding bits; means responsive to actuation of said first selection switch for providing a first binary code combination of selected and unselected information bits to generate a command pulse during each selected information bit of said first binary code combination, and responsive to actuation of said second selection switch for providing a second binary code combination of selected and unselected information bits different from said first binary code combination to generate a command pulse during each selected information bit of said second binary code combination; means for combining said generated decoding pulses with said generated command pulses into a composite digital signal; and means for transmitting a pulse train of single-frequency pulses corresponding to said composite signal.

Claim 2

Dependent Claim 189 words

A remote control transmitter for transmitting a digital signal for selectively controlling a plurality of remote devices, comprising: first and second actuatable selection switches; means for seriatim providing an ordered sequence of bits with at least one bit corresponding to an information bit and at least one bit corresponding to a decoding bit; means responsive to actuation of either of said switches for generating a decoding pulse during the provision of said decoding bits; means responsive to actuation of said first selection switch for providing a first binary code combination of selected and unselected information bits to generate a command pulse during each selected information bit of said first binary code combination, and responsive to actuation of said second selection switch for providing a second binary code combination of selected and unselected information bits different from said first binary code combination to generate a command pulse during each selected information bit of said second binary code combination; means for combining said generated decoding pulses with said generated command pulses into a composite digital signal; and means for transmitting a pulse train of single-frequency pulses corresponding to said composite signal.

Claim 3

Dependent Claim 47 words

The remote control transmitter of claim 1 wherein there are a plural number of decoding bits, said decoding bits including a syncronization bit occurring prior to each of said information bits, and said decoding pulse generating means generates a synchronization pulse during each of said synchronization bits.

Claim 4

Dependent Claim 49 words

The remote control transmitter of claim 2 wherein there are a plural number of decoding bits, said decoding bits including an execute bit occurring after the last of said information bits, and said decoding pulse generating means generates an elongated execute pulse during and continuing after said execute bit.

Claim 5

Dependent Claim 40 words

The remote control transmitter of claim 1 wherein said decoding bit comprises an execute bit occurring after the last of said information bits, and said decoding pulse generating means generates an elongated execute pulse throughout and after said execute bit.

Claim 6

Dependent Claim 79 words

The remote control transmitter of claim 1 wherein said timing means comprises means for generating a periodic train of clock pulses, a binary counter with a plural number of flip-flop stages, and means coupling said clock pulse generating means to a toggle input of said binary counter, said flip-flop stages hanging states in response to clock pulses at said toggle input in a standard binary counter fashion, each of said flip-flop stages having outputs for indicating their respective states.

Claim 7

Dependent Claim 171 words

The remote control transmitter of claim 5 wherein said command pulse generating means comprises a plurality of logic gates coupled to aid flip-flop output stages with each gate generating an information pulse during a different one of said information bits, a command pulse logic gate for generating a command pulse in response to an information pulse applied to any one of a plurality of inputs of said command gate, and a switching means associated with each of said information pulse generating gates for respectively coupling the information pulse from each of said information pulse generating gates to one of said command pulse gate inputs only when said switching means is in a first of two states, first and second combinations of said switching means respectively corresponding to said first and second binary code combinations assuming said first state respectively in response to actuation of said first and second actuation switches, only those switching means associated with the information pulse generating gates associated with said selected information bits assuming said first state.

Claim 8

Dependent Claim 190 words

The remote control transmitter of claim 6 wherein each of said flip-flop stages has a normal output and an inverted output, and said decoding pulse generator includes at least one decoding pulse logic gate with a plurality of inputs respectively coupled to one of said outputs of each of said flip-flop stages, said decoding pulse logic gate generating a decoding pulse in response to all of said decoding gate inputs being in the same state, all of said inputs being in the same state only during said decoding bits. 8. The remote contrOl transmitter of claim 7 wherein there are a plural number of decoding bits, said decoding bits including a synchronization bit occurring prior to each of said information bits, and said decoding pulse generating means includes a synchronization pulse logic gate with a plurality of inputs respectively coupled to one of said outputs of each of said flip-flop stages, said synchronization gate generating a synchronization pulse in response to all of said synchronization gate inputs being in the same state, all of said synchronization gate inputs being in the same state only during each of said synchronization bits.

Claim 9

Dependent Claim 25 words

The remote control transmitter of claim 8 wherein at least one bit, other than a synchronization bit, occurs prior to each of said information bits.

Claim 10

Dependent Claim 100 words

The remote control transmitter of claim 8 wherein said decoding bits include an execute bit occurring after the last of said information bits, and said decoding pulse generating means includes an execute pulse logic gate with a plurality of inputs respectively coupled to one of said outputs of each of said flip-flop stages, said execute gate generating an execute pulse in response to all of said execute gate inputs being in the same state, all of said execute gate inputs being in the same state only when said flip-flop stages are in a collective state corresponding to said execute bit.

Claim 11

Dependent Claim 85 words

The remote control transmitter of claim 10 wherein said clock pulse coupling means comprises a clock pulse logic gate with an output coupled to said toggle input, a first input coupled to said clock pulse generating means and a second input coupled to the output of said execute gate, said clock pulse logic gate being disabled by said execute pulse from generating any subsequent clock pulses, and said flip-flop stages maintaining said collective state until a subsequent clock pulse is applied to said toggle input.

Claim 12

Dependent Claim 75 words

The remote control transmitter of claim 7 wherein said combining means comprises a logic gate with at least one input for receiving decoding pulses, another input coupled to the output of said command pulse gate for receiving said command pulses, and an output coupled to said transmitting means, said combining logic gate generating said composite signal of pulses in response to pulses at either of said combining logic gate inputs for driving said transmitting means.

Claim 13

Dependent Claim 46 words

The remote control transmitter of claim 12 wherein said transmitting means comprises an oscillator for driving a transducer to transmit pulses of supersonic or ultrasonic sound waves corresponding to said composite signal pulses, said oscillator being switched on and off in response to said composite signal.

Claim 14

Dependent Claim 171 words

A remote control system for selectively controlling a plurality of remote devices comprising: remote control transmitter means for generating a composite signal sequence of single-frequency pulses in response to actuation of any one of a plurality of selection switches, said composite signal containing decoding pulses and a command signal comprising a binary-coded combination of information bits unique to the particular switch actuated, each combination representing a different control for said devices; and remote control receiver means for receiving said composite signal and decoding said code combination to control said devices in response thereto, including means for generating a composite signal of voltage pulses corresponding to said received composite signal, storage means for temporarily storing generated information bits of said generated composite signal, means responsive to generated decoding pulses of said generated composite signal to prevent storage except when said generated information bits are presented for storage, and means responsive to the code combination of information bits in said storage means for controlling said devices in accordance with the control represented thereby.

Claim 15

Dependent Claim 171 words

A remote control system for selectively controlling a plurality of remote devices comprising: remote control transmitter means for generating a composite signal sequence of single-frequency pulses in response to actuation of any one of a plurality of selection switches, said composite signal containing decoding pulses and a command signal comprising a binary-coded combination of information bits unique to the particular switch actuated, each combination representing a different control for said devices; and remote control receiver means for receiving said composite signal and decoding said code combination to control said devices in response thereto, including means for generating a composite signal of voltage pulses corresponding to said received composite signal, storage means for temporarily storing generated information bits of said generated composite signal, means responsive to generated decoding pulses of said generated composite signal to prevent storage except when said generated information bits are presented for storage, and means responsive to the code combination of information bits in said storage means for controlling said devices in accordance with the control represented thereby.

Claim 16

Dependent Claim 84 words

The remote control system of claim 14 wherein the entire generated composite signal is preseNted to an information input of said storage means, said storage means storing said signal at said information input only when a clock pulse transition occurs at a clock pulse input of said storage means, said storage prevention means including means for generating said clock pulse transition only when said generated information bits are presented, thereby preventing storage of said generated decoding pulses and enabling storage of said information bits.

Claim 17

Dependent Claim 91 words

The remote control system of claim 15 wherein said clock pulse generating means comprises logic gate means changing states in response to said generated composite signal except when said logic gate is disabled, first monostable means changing states in response to said generated decoding pulses for disabling said logic gate during said generated information bits, said logic gate thereby generating pulses only in response to said generated decoding pulses, and second monostable means generating clock pulse transitions driving each of said generated information bits in response to said logic gate pulses.

Claim 18

Dependent Claim 21 words

The remote control system of claim 16 wherein a decoding pulse is generated prior to each of said generated information bits.

Claim 19

Dependent Claim 98 words

The remote control of claim 15 wherein said code combination responsive means comprises, decoding means coupled to said storage means, said decoding means actuating one of a plurality of outputs during storage of a code combination of information bits unique to said one actuated output, and a control means coupled to each of said decoding outputs with only the control means coupled to said actuated decoding output controlling an associated remote device in response to a read pulse coupled to all of said control means, said read pulse generated in response to one of said generated decoding pulses.

Claim 20

Dependent Claim 33 words

The remote control system of claim 18 wherein said read pulse generator is actively coupled to said generated composite signal and generates said read pulse only in response to an elongated decoding pulse.

Claim 21

Dependent Claim 24 words

The remote control system of claim 19 wherein said elongated decoding pulse is generated after the last of said generated information bits is stored.

Claim 22

Dependent Claim 97 words

The remote control system of claim 14 wherein said remote control transmitter includes timing means successively assuming an ordered sequence of distinguishable states, each state corresponding to a different bit, means responsive to said timing means for generating a decoding pulse during preselected ones of said bits, means responsive to said timing means for generating a command pulse during selected ones of said information bits, means for combining said generated decoding pulses with said generated command pulses into a composite digital signal, and means for transmitting a pulse train of single-frequency pulses corresponding to said composite signal.

Claim 23

Dependent Claim 26 words

The remote control system of claim 21 wherein said remote control transmitter includes means for generating a decoding pulse prior to each of said information bits.

Claim 24

Dependent Claim 32 words

The remote control system of claim 21 wherein said remote control transmitter includes means responsive to said timing means for generating an elongated decoding pulse after the last of said information bits.

Claim 25

Dependent Claim 67 words

The remote control system of claim 21 wherein said remote control transmitter includes means responsive to said timing means for stopping said timing means from successively assuming said distinguishable states, said timing means being stopped in a state corresponding to one of said preselected ones of said bits such that said decoding pulse generating means generates an elongated decoding pulse after the last of said information bits.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-12-27	1975-06-28	1975-12-28	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-12-27	1979-06-28	1979-12-28	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-12-27	1983-06-28	1983-12-28	$7700.00	Window Closed / Lapsed

Tv remote control system

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