US4371813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for moving a marker over the picture screen
Assignee: Siemens AG
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Filing: 1980-07-29
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Granted: 1983-02-01
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Expires: 2000-07-29
Abstract
Abstract An arrangement for displacing a marker on the picture screen of a display device, in which, to shift the marker rapidly as well as exactly, the marker is displaced by means of a rotary pulse generator, the direction of rotation determining the direction of displacement and the speed of rotation the speed of displacement. The output pulses of the rotary pulse generator are supplied to a progressive frequency transformer which generates more output pulses per input pulse the higher the frequency of the input pulses.
Inventors
- 👤 Jurgen Dollheimer
- 👤 Klaus Knoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:21
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/038; G06F3/0354; G06F3/03549; G06F3/0383; G06F3/048; G06F3/0487; G06F3/0489; G06F3/04892
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
189 words
In a circuit arrangement for moving a marker over the picture screen of a display device including: (a) a positioning transmitter; (b) a pulse generator mechanically coupled to said positioning transmitter such that, upon actuation of said positioning transmitter pulses of switchable frequency are generated; (c) a position counter for each coordinate in which the marker is moveable, the stored value of which corresponds to the position of the marker on the picture screen and the counting direction of which is controllable according to the desired displacement direction on the coordinate, coupled to receive pulses from said position transmitter, the improvement comprising: (d) the pulse generator being a rotary pulse generator, one being provided for each coordinate and mechanically coupled to the positioning transmitter, said rotary pulse generator providing output pulses; and (e) a progressive frequency transformer for each coordinate which delivers a number of output pulses for each input pulse, said number increasing with the frequency of the input pulses, said progressive frequency transformer having the output pulses of an associated rotary pulse generator as an input and providing its output to the position counter for that coordinate.
Claim 2
Dependent Claim
189 words
In a circuit arrangement for moving a marker over the picture screen of a display device including: (a) a positioning transmitter; (b) a pulse generator mechanically coupled to said positioning transmitter such that, upon actuation of said positioning transmitter pulses of switchable frequency are generated; (c) a position counter for each coordinate in which the marker is moveable, the stored value of which corresponds to the position of the marker on the picture screen and the counting direction of which is controllable according to the desired displacement direction on the coordinate, coupled to receive pulses from said position transmitter, the improvement comprising: (d) the pulse generator being a rotary pulse generator, one being provided for each coordinate and mechanically coupled to the positioning transmitter, said rotary pulse generator providing output pulses; and (e) a progressive frequency transformer for each coordinate which delivers a number of output pulses for each input pulse, said number increasing with the frequency of the input pulses, said progressive frequency transformer having the output pulses of an associated rotary pulse generator as an input and providing its output to the position counter for that coordinate.
Claim 3
Dependent Claim
24 words
The improvement according to claim 1, wherein said positioning transmitter is a track ball at which one a pulse generator per coordinate is disposed.
Claim 4
Dependent Claim
15 words
The improvement according to claim 1 or 2, wherein said positioning transmitter has a ratchet.
Claim 5
Dependent Claim
39 words
The improvement according to claim 1 and further including a direction of rotation decoder to determine the direction of rotation coupled to the output of each pulse generator providing a count direction control input to its respective position counter.
Claim 6
Dependent Claim
127 words
The improvement according to claim 4, wherein each pulse generator emits two phase shifted pulse trains and said direction of rotation decoder comprises first and second bistable multivibrators each having one of the pulse train coupled to its enabling inputs; a inverter; the other pulse train coupled directly to the clock input of said first bistable multivibrator and, through said inverter, to the clock input of said second bistable multivibrator; OR gate means having the outputs of said first and second multivibrators as inputs the output of said OR gate means providing a pulse train output; and a third multivibrator having the outputs of said first and second bistable multivibrators as inputs providing at its output the control signal for the counting direction of the position counter.
Claim 7
Dependent Claim
54 words
The improvement according to claim 5 and further including a source of clock pulses, a monostable multivibrator having its clock input coupled to said clock pulses and its enable input coupled to the output of said OR gate means, and supplying its output to the reset inputs of said first and second bistable multivibrators.
Claim 8
Dependent Claim
51 words
The improvement according to claim 1 wherein said progressive frequency transformer includes: a frequency discriminator arrangement having its input coupled to the output of said positon transmitter and a pulse generator receiving a control input from said frequency discriminator arrangement which is a function of the frequency of the input pulses.
Claim 9
Dependent Claim
60 words
The improvement according to claim 7, wherein said pulse generator comprises a clock generator generating a constant frequency; and a multi-stage frequency divider receiving inputs from said clock generator and wherein said frequency discriminator arrangement comprises means to switch the output signals of stages of said frequency divider stage to the position counter as a function of its input frequency.
Claim 10
Dependent Claim
29 words
The improvement according to claim 8 and further including means to, at least at low frequency, couple the output pulses of the position transmitter directly to the position counter.
Claim 11
Dependent Claim
57 words
The improvement according to claim 9, wherein said frequency discriminator arrangement comprises a plurality of frequency discriminators which are set to certain frequencies, a plurality of exclusive OR gates, the outputs of said frequency discriminators linked in pairs through said exclusive OR gates, the outputs of said exclusive OR gates providing control inputs to said pulse generator.
Claim 12
Dependent Claim
67 words
The improvement according to claim 10, and further including a plurality of coincidence gates each having one input coupled to a respective exclusive OR gate output and another input coupled to the respective stages of the frequency divider and a further coincidence gate having as one input the output of the discriminator set to the highest frequency and as another input the output of said clock generator.
Claim 13
Dependent Claim
89 words
The improvement according to claim 10, wherein said frequency discriminators each comprise a bistable multivibrator and a monostable multivibrator, the time constants of the monostable multivibrators being set to frequencies above which the output signals of the frequency discriminators tapped at the outputs of the bistable multivibrators change, the enabling inputs and the reset inputs of the bistable multivibrators connected to the outputs of the monostable multivibrators and the input pulses being supplied to the clock inputs of the bistable multivibrators and the clock inputs of the monostable multivibrators.
Claim 14
Dependent Claim
91 words
The improvement according to claim 1 wherein said progressive frequency transformer comprises a clock generator; a period duration counter having coupled, as an input, the output pulses of the position transmitter; a function resolver coupled to the output of said period duration counter, said function resolver providing output signals; and a prorammable frequency divider controlled by the outputs of said function resolver, said programmable frequency divider also receiving, as inputs, pulses of constant frequency supplied by said clock generator, the output pulses of said frequency divider coupled to the position counter.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |