Patent US3806876A successfully refreshed from Google Patents.
US3806876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for remote control
Assignee: Zellweger Uster AG
•
Filing: 1972-06-02
•
Granted: 1974-04-23
•
Expires: 1992-06-02
Abstract
Abstract A method of and apparatus for carrying out remote-control operations, wherein a remote-control frequency is formed from a first auxiliary frequency, the remote-control frequency bearing a predetermined first relationship to the first auxiliary frequency. The first auxiliary frequency and the remote-control frequency are transmitted to a receiver. at the receiver a second auxiliary frequency is formed from the first auxiliary frequency, the second auxiliary frequency bearing a predetermined second relationship to the first auxiliary frequency. The second auxiliary frequency is then delivered as a clock frequency to an N-path filter possessing a filter pass frequency corresponding to the remote-control frequency.
Inventors
- 👤 R Kniel
- 👤 J Kucera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:21
CPC Classifications
H; H03; H03H; H03H19/00; H03H19/002; H02; H02J; H02J13/00; H02J13/13; H02J13/1311; H02J13/1313; Y; Y02; Y02B; Y02B90/00; Y02B90/20; Y02E; Y02E60/00; Y04; Y04S; Y04S40/00; Y04S40/12; Y04S40/121
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
111 words
A method of carrying out remote-control operations, comprising the steps of generating a remote-control frequency from a first auxiliary frequency, the remote-control frequency bearing a predetermined first relationship to the first auxiliary frequency, transmitting the first auxiliary frequency and the remote-control frequency to a receiver, generating at the receiver a second auxiliary frequency from the first auxiliary frequency, the second auxiliary frequency bearing a predetermined second relationship to the first auxiliary frequency, supplying the second auxiliary frequency as a clock frequency to an N-path filter possessing a filter pass frequency corresponding to the remote-control frequency, and controlling the filter pass frequency of the N-path filter by means of said clock frequency.
Claim 2
Independent Claim
111 words
A method of carrying out remote-control operations, comprising the steps of generating a remote-control frequency from a first auxiliary frequency, the remote-control frequency bearing a predetermined first relationship to the first auxiliary frequency, transmitting the first auxiliary frequency and the remote-control frequency to a receiver, generating at the receiver a second auxiliary frequency from the first auxiliary frequency, the second auxiliary frequency bearing a predetermined second relationship to the first auxiliary frequency, supplying the second auxiliary frequency as a clock frequency to an N-path filter possessing a filter pass frequency corresponding to the remote-control frequency, and controlling the filter pass frequency of the N-path filter by means of said clock frequency.
Claim 3
Dependent Claim
25 words
The method as defined in claim 1, including the step of generating the second auxiliary frequency so as to be equal to the remote-control frequency.
Claim 4
Dependent Claim
26 words
The method as defined in claim 1, including the step of generating the second auxiliary frequency so as to be a multiple of the remote-control fRequency.
Claim 5
Dependent Claim
48 words
The method as defined in claim 1, including the step of utilizing as the first auxiliary frequency the mains frequency of a power supply system, and superimposing the remote-control frequency formed from the mains frequency upon the power supply system and which is thus delivered to the receiver.
Claim 6
Dependent Claim
42 words
The method as defined in claim 1, including the step of controlling by means of the second auxiliary frequency an N-phasic impulse generator to produce a pulse sequence, and supplying the pulse sequence to the N-path filter for controlling the operation thereof.
Claim 7
Dependent Claim
23 words
The method as defined in claim 5, including the step of employing the N-phasic impulse generator for controlling more than one N-path filter.
Claim 8
Dependent Claim
26 words
The method as defined in claim 1, including the step of utilizing an N-path filter having a rated frequency which is equal to the remote-control frequency.
Claim 9
Dependent Claim
29 words
The method as defined in claim 1, including the step of using an N-path filter having a rated frequency which is equal to a fraction of the remote-control frequency.
Claim 10
Dependent Claim
28 words
The method as defined in claim 1, including the step of transmitting the first auxiliary frequency and the remote-control frequency through the same transmission channel to a receiver.
Claim 11
Dependent Claim
27 words
The method as defined in claim 1, including the step of transmitting the first auxiliary frequency and the remote-control frequency through different transmission channels to the receiver.
Claim 12
Independent Claim
156 words
An apparatus for use in carrying out remote-control operations, comprising transmitter means incorporating a first frequency converter for generating from a first auxiliary frequency delivered thereto a remote-control frequency bearing a predetermined first relationship to the first auxiliary frequency, receiver means operatively associated with the transmitter means for receiving from said transmitter means the first auxiliary frequency and the remote-control frequency generated therefrom, said receiver means including at least one N-path filter and an associated second frequency converter, said second frequency converter forming from the first auxiliary frequency delivered thereto a second auxiliary frequency delivered as a clock frequency to the N-path filter to enable such N-path filter to pass the remote-control frequency, said second frequency converter controlling the filter pass frequency of said N-path filter by means of said clock frequency, said second auxiliary frequency or a repetition frequency of a pulse sequence controlled thereby being equal to the remote-control frequency or a multiple thereof.
Claim 13
Independent Claim
156 words
An apparatus for use in carrying out remote-control operations, comprising transmitter means incorporating a first frequency converter for generating from a first auxiliary frequency delivered thereto a remote-control frequency bearing a predetermined first relationship to the first auxiliary frequency, receiver means operatively associated with the transmitter means for receiving from said transmitter means the first auxiliary frequency and the remote-control frequency generated therefrom, said receiver means including at least one N-path filter and an associated second frequency converter, said second frequency converter forming from the first auxiliary frequency delivered thereto a second auxiliary frequency delivered as a clock frequency to the N-path filter to enable such N-path filter to pass the remote-control frequency, said second frequency converter controlling the filter pass frequency of said N-path filter by means of said clock frequency, said second auxiliary frequency or a repetition frequency of a pulse sequence controlled thereby being equal to the remote-control frequency or a multiple thereof.
Claim 14
Dependent Claim
52 words
The apparatus as defined in claim 11, further comprising a pre-selection component and a main selection component associated with said pre-selection component, said main selection component containing the N-path filter, said pre-selection component at least partially suppressing at least some of the frequencies that are not suppressed by the main selection component.
Claim 15
Dependent Claim
28 words
The apparatus as defined in claim 11, further including an N-phasic impulse generator following said second frequency converter for generating the clock frequency for the associated N-path filter.
Claim 16
Dependent Claim
30 words
The apparatus as defined in claim 13, wherein the clock frequency generated by the N-phasic impulse generator following the second frequency converter is a multiple of the received remote-control frequency.
Claim 17
Dependent Claim
40 words
The apparatus as defined in claim 13, wherein the clock frequency generated by the N-phasic impulse generator following the second frequency converter is N-times the remote-control frequency, wherein N is equal to the number of stages in the N-path filter.
Claim 18
Dependent Claim
26 words
The apparatus as defined in claim 11, wherein the second auxiliary frequency generated by the second frequency converter is a multiple of the received remote-control frequency.
Claim 19
Dependent Claim
37 words
The apparatus as defined in claim 11, wherein the second auxiliary frequency generated by the second frequency converter is N-times the remote-control frequency, and whereiN N is equal to the number of stages in the N-path filter.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |