US3900880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wireless remote operation of an RF receiver
Assignee: Deutsche Thomson OHG
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Filing: 1973-12-05
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Granted: 1975-08-19
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Expires: 1993-12-05
Abstract
Abstract For the wireless remote control of an RF receiver having a remote control signal processing portion, the RF receiver being capable of being switched between an off state, an on state and an enabled state in which a channel is not being received but the remote control signal processing portion is operative, the remote control processing portion includes a remote control signal receiver unit and a memory circuit connected to receive signals from the receiver unit and to convert them into voltages which operate the RF receiver, and there is provided a remote control signal transmitter having a button or key for each channel and arranged to transmit, upon actuation of a given button, a carrier signal which is pulse modulated with a number of pulses corresponding to the selected channel. The memory circuit has one location for each such channel and an additional location which can produce an output voltage to switch the receiver from its on state to its enabled state. Only one memory location can produce an output voltage at any given time.
Inventors
- 👤 Wolfgang Fleischer
- 👤 Kurt Knuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:15
CPC Classifications
H; H03; H03J; H03J9/00; H03J9/04; H03J1/00; H03J1/18; H03J1/22; H03J9/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
370 words
In a system for the wireless remote control of an RF receiver which can be switched between a switched-off state, a switchedon, operational, state, and an enabled state, the system including a remote control device for generating remote control signals capable of switching the RF receiver from the enabled to the operational state and tuning the receiver to the desired station, a control signal processing unit associated with the receiver and composed of a switching memory producing output signals which control the operation of the RF receiver and a state control switch connected to switch the receiver between its operational state and enabled state, and a remote control signal receiver connected to deliver the remote control signals to the memory, the improvement wherein: a. said remote control device comprises 1. a plurality of station selector members each associated with a respective station to be selected, and 2. transmitter means connected to be controlled by actuation of any one of said selector members for transmitting a remote control signal containing a number of pulses determined by the selector member which is actuated and corresponding to the selected station; and b. said switching memory comprises 1. counter means connected to said remote control signal receiver for counting the number of pulses in a received remote control signal, 2. a plurality of station selecting memory locations and a state selecting memory location, each switchable between a state in which it produces no output signal and a state in which it produces an output signal, said counter means being connected to said memory locations for causing only one of said locations to produce an output signal upon completion of the count of the number of pulses in a received remote control signal, and 3. means connecting said station selecting memory locations to the RF receiver to cause the receiver to be tuned to the selected station in response to an output signal from the corresponding station selecting memory location, and connecting said state selecting memory location to said state control switch for causing the receiver to be switched from its enabled state to its operational state when said state selecting memory location is switched into the state in which it produces no output signal.
Claim 2
Dependent Claim
370 words
In a system for the wireless remote control of an RF receiver which can be switched between a switched-off state, a switchedon, operational, state, and an enabled state, the system including a remote control device for generating remote control signals capable of switching the RF receiver from the enabled to the operational state and tuning the receiver to the desired station, a control signal processing unit associated with the receiver and composed of a switching memory producing output signals which control the operation of the RF receiver and a state control switch connected to switch the receiver between its operational state and enabled state, and a remote control signal receiver connected to deliver the remote control signals to the memory, the improvement wherein: a. said remote control device comprises 1. a plurality of station selector members each associated with a respective station to be selected, and 2. transmitter means connected to be controlled by actuation of any one of said selector members for transmitting a remote control signal containing a number of pulses determined by the selector member which is actuated and corresponding to the selected station; and b. said switching memory comprises 1. counter means connected to said remote control signal receiver for counting the number of pulses in a received remote control signal, 2. a plurality of station selecting memory locations and a state selecting memory location, each switchable between a state in which it produces no output signal and a state in which it produces an output signal, said counter means being connected to said memory locations for causing only one of said locations to produce an output signal upon completion of the count of the number of pulses in a received remote control signal, and 3. means connecting said station selecting memory locations to the RF receiver to cause the receiver to be tuned to the selected station in response to an output signal from the corresponding station selecting memory location, and connecting said state selecting memory location to said state control switch for causing the receiver to be switched from its enabled state to its operational state when said state selecting memory location is switched into the state in which it produces no output signal.
Claim 3
Dependent Claim
46 words
transmitter means connected to be controlled by actuation of any one of said selector members for transmitting a remote control signal containing a number of pulses determined by the selector member which is actuated and corresponding to the selected station; and b. said switching memory comprises
Claim 4
Dependent Claim
46 words
transmitter means connected to be controlled by actuation of any one of said selector members for transmitting a remote control signal containing a number of pulses determined by the selector member which is actuated and corresponding to the selected station; and b. said switching memory comprises
Claim 5
Dependent Claim
73 words
a plurality of station selecting memory locations and a state selecting memory location, each switchable between a state in which it produces no output signal and a state in which it produces an output signal, said counter means being connected to said memory locations for causing only one of said locations to produce an output signal upon completion of the count of the number of pulses in a received remote control signal, and
Claim 6
Dependent Claim
73 words
a plurality of station selecting memory locations and a state selecting memory location, each switchable between a state in which it produces no output signal and a state in which it produces an output signal, said counter means being connected to said memory locations for causing only one of said locations to produce an output signal upon completion of the count of the number of pulses in a received remote control signal, and
Claim 7
Dependent Claim
69 words
An arrangement as defined in claim 1 wherein said remote control device further comprises a state selector member connected to said transmitter means, said selector member being actuatable to cause said transmitter means to transmit a remote control signal containing a number of pulses which results in the production of a count by said counter means for causing only said state selecting memory location to produce an output signal.
Claim 8
Dependent Claim
47 words
An arrangement as defined in claim 2 wherein said transmitter means is arranged to produce remote control signals in which the number of pulses resulting from actuation of said state selector member is less than that resulting from actuation of any one of said station selector members.
Claim 9
Dependent Claim
80 words
means connecting said station selecting memory locations to the RF receiver to cause the receiver to be tuned to the selected station in response to an output signal from the corresponding station selecting memory location, and connecting said state selecting memory location to said state control switch for causing the receiver to be switched from its enabled state to its operational state when said state selecting memory location is switched into the state in which it produces no output signal.
Claim 10
Dependent Claim
80 words
means connecting said station selecting memory locations to the RF receiver to cause the receiver to be tuned to the selected station in response to an output signal from the corresponding station selecting memory location, and connecting said state selecting memory location to said state control switch for causing the receiver to be switched from its enabled state to its operational state when said state selecting memory location is switched into the state in which it produces no output signal.
Claim 11
Dependent Claim
51 words
An arrangement as defined in claim 3 wherein said remote control receiver is connected to said switching memory in a manner such that upon receipt of a remote control signal, said state selecting memory location initially produces an output signal independently of the previous output signal states of said memory locations.
Claim 12
Dependent Claim
96 words
An arrangement as defined in claim 4 wherein said switching memory is provided with a reset input connected to apply pulses directly to said state selecting memory location for causing it to produce an output signal, and a clock pulse input connected to deliver pulses to the count input of said counter means, and said remote control receiver is connected to saiD inputs for delivering only the first pulse of a received remote control signal to said reset input and for delivering the remaining pulses of the received remote control signal to said clock pulse input.
Claim 13
Dependent Claim
70 words
An arrangement as defined in claim 5 further comprising means connected for preventing an output signal from said state selecting memory location from switching the receiver into its enabled state for a period of time which is longer than the time for which said selecting memory location is caused to initially produce an output signal during receipt of a remote control signal for tuning the receiver to a desired station.
Claim 14
Dependent Claim
75 words
An arrangement as defined in claim 1 further comprising a plurality of station selector switches located at the receiver, and wherein said switching memory is provided with a plurality of switching inputs each connected to a respective station selector switch and each associated with a respective station selecting memory location for permitting actuation of one of said station selector switches to cause an output signal to be produced by the associated station selecting memory location.
Claim 15
Dependent Claim
53 words
An arrangement as defined in claim 7 wherein said counter is connected to said switching inputs in such a manner that actuation of one of said station selector switch causes said counter to be placed in the count state corresponding to the associated memory location which is caused to produce an output signal.
Claim 16
Dependent Claim
49 words
An arrangement as defined in claim 7 wherein said station selector switches are constituted by nonmechanical switches and said switching memory includes means for preventing said station selector switches from influencing said station selecting memory locations as long as said state selecting memory location is producing an output signal.
Claim 17
Dependent Claim
68 words
An arrangement as defined in claim 9 further comprising a state selector switch located at the receiver, and wherein said switching memory is provided with a further input connecting said state selector switch to said state selecting memory location in such a manner that each actuation of said state selector switch causes said state selecting memory locaation to switch from its previously existing state to its other state.
References Cited (Backward Citations)
US3678392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |