US3914698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic selector system
Assignee: Texas Instruments Inc
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Filing: 1974-05-22
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Granted: 1975-10-21
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Expires: 1994-05-22
Abstract
Abstract A selector system for energizing a selected one of a plurality of 2n utilization devices wherein clock pulses are applied to an n stage up-down counter to cause it to count up or down in dependence on which of two input terminals receives the input signal; one stage of the counter activates a pair of output terminals alternately and the remaining stages of the counter activate a decoder to produce output signals on a plurality of 2n 1 other output terminals one at a time in sequence; feedback is applied selectively from any of the plurality of output terminals to either one of the input terminals through switching means.
Inventors
- 👤 Horst Leuschner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:00
CPC Classifications
H; H03; H03K; H03K21/00; H03K21/08; H03K5/00; H03K5/15; H03K5/15013; H03K5/15026; H03K5/15033
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
291 words
A selector system for selectively energizing one of 2n utilization devIces comprising: a. first and second input terminals; b. a pair of output terminals; c. 2n 1 additional output terminals; d. means operative in response to and during the application of an input signal of a first logic level to one of said first and second input terminals to produce a signal of a second logic level at said pair of output terminals one at a time at a first predetermined frequency and to produce a signal of said second logic level at said 2n 1 output terminals one at a time at a second predetermined frequency different from but related to said first frequency in a first sequence when said input signal is applied to said first input terminal and in a reverse sequence when said input signal is applied to said second input terminal; e. means operative in response to the application of an input signal of said second logic level to one of said input terminals to produce a signal of said second logic level at one of said pair of output terminals when said input signal of said second logic level is applied to said first input terminal and to produce a signal of said second logic level at the other of said pair of output terminals when said input signal of a second logic level is applied to said second input terminal; f. a plurality of switching means each operative when activated to connect a different one of said 2n 1 output terminals to said first input terminal; and g. a second plurality of switching means each operative when activated to connect a different one of said 2n 1 output terminals to said second input terminal.
Claim 2
Dependent Claim
291 words
A selector system for selectively energizing one of 2n utilization devIces comprising: a. first and second input terminals; b. a pair of output terminals; c. 2n 1 additional output terminals; d. means operative in response to and during the application of an input signal of a first logic level to one of said first and second input terminals to produce a signal of a second logic level at said pair of output terminals one at a time at a first predetermined frequency and to produce a signal of said second logic level at said 2n 1 output terminals one at a time at a second predetermined frequency different from but related to said first frequency in a first sequence when said input signal is applied to said first input terminal and in a reverse sequence when said input signal is applied to said second input terminal; e. means operative in response to the application of an input signal of said second logic level to one of said input terminals to produce a signal of said second logic level at one of said pair of output terminals when said input signal of said second logic level is applied to said first input terminal and to produce a signal of said second logic level at the other of said pair of output terminals when said input signal of a second logic level is applied to said second input terminal; f. a plurality of switching means each operative when activated to connect a different one of said 2n 1 output terminals to said first input terminal; and g. a second plurality of switching means each operative when activated to connect a different one of said 2n 1 output terminals to said second input terminal.
Claim 3
Dependent Claim
78 words
A selector system as defined in claim 1 wherein said first mentioned means comprises an n stage up-down counter and an n-1 to 2n 1 line decoder wherein the bit and bit complement outputs of one stage of said counter produce said signals at said pair of output terminals and the bit and bit complement outputs of the other stages of said counter are applied to said decoder to produce said signals at said 2n 1 output terminals.
Claim 4
Dependent Claim
21 words
A selector system as defined in claim 2 wherein said one stage of said counter is the least significant bit stage.
Claim 5
Dependent Claim
25 words
A selector system as defined in claim 2 wherein said second mentioned means produces clear and preset signals to said one stage of said counter.
Claim 6
Dependent Claim
21 words
A selector system as defined in claim 4 wherein said one stage of said counter is the least significant bit stage.
Claim 7
Dependent Claim
14 words
A selector system as defined in claim 1 wherein n is equal to 4.
Claim 8
Dependent Claim
14 words
A selector system as defined in claim 2 wherein n is equal to 4.
Claim 9
Dependent Claim
14 words
A selector system as defined in claim 5 wherein n is equal to 4.
Claim 10
Dependent Claim
233 words
A switch selector system comprising a plural stage up-down counter providing bit outputs from each of said stages, an input circuit adapted to receive input signals of a first or a second type at either a first or second input terminal, said input circuit being operative to initiate and continue operation of said counter in a first sequence in response to and during the reception of an input signal of said first type at said first input terminal and to initiate and continue operation of said counter in an opposite sequence in response to and during the reception of an input signal of said first type at said second input terminal, a pair of output terminals receiving opposite logic level signals in dependence on the state of one stage of said counter, a plurality of additional output terminals receiving alternately in sequence opposite logic level signals, one of said logic level signals being received exclusively by each of said additional output terminals in sequence and in dependence on the state of the others of said counter stages, a plurality of normally open switching means each adapted to have two closed states and to connect different ones of said additional output terminals to said first input terminal when in a first closed state and to connect different ones of Said additional output terminals to said second input terminal when in said second closed state.
Claim 11
Dependent Claim
233 words
A switch selector system comprising a plural stage up-down counter providing bit outputs from each of said stages, an input circuit adapted to receive input signals of a first or a second type at either a first or second input terminal, said input circuit being operative to initiate and continue operation of said counter in a first sequence in response to and during the reception of an input signal of said first type at said first input terminal and to initiate and continue operation of said counter in an opposite sequence in response to and during the reception of an input signal of said first type at said second input terminal, a pair of output terminals receiving opposite logic level signals in dependence on the state of one stage of said counter, a plurality of additional output terminals receiving alternately in sequence opposite logic level signals, one of said logic level signals being received exclusively by each of said additional output terminals in sequence and in dependence on the state of the others of said counter stages, a plurality of normally open switching means each adapted to have two closed states and to connect different ones of said additional output terminals to said first input terminal when in a first closed state and to connect different ones of Said additional output terminals to said second input terminal when in said second closed state.
Claim 12
Dependent Claim
63 words
A switch selector system as defined in claim 9 having in addition means responsive to a second type of input signal received at one of said first or second input terminals to establish a first or a second state of said one counter stage in dependence upon whether said second type input signal is received at said first or said second input terminal.
References Cited (Backward Citations)
US3652960A
Cited
US3662270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |