US5184115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touch-screen arrangement
Assignee: NCR Voyix Corp
•
Filing: 1990-06-04
•
Granted: 1993-02-02
•
Expires: 2010-06-04
Abstract
Abstract In an arrangement wherein an inquiry and a choice of respones thereto are displayed on a CRT screen, a selection is made by holding a touch-screen device against the area of the screen corresponding to the desired response. Such a touch-screen device is designed to have an inductive coil in its tip. When an electron beam which scans the CRT screen sweeps across the tip of the touch-screen device, an electrical signal is induced on the coil. The touch-position or the selection is determined based on a knowledge of the position of the electron beam on the screen at the time of the electrical signal induction.
Inventors
- 👤 Edward P. Black
- 👤 Douglas C. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:44
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/046; G06F3/033; G06F3/0354; G06F3/03545
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
59 words
Apparatus for use with a CRT, said CRT emitting an electron beam which scans a viewing screen, said apparatus comprising means including an inductive coil for detecting a magnetic field generated by the scan of said electron beam on said viewing screen, and means for activating a generation of a signal indicative of a detection of said magnetic field.
Claim 2
Dependent Claim
59 words
Apparatus for use with a CRT, said CRT emitting an electron beam which scans a viewing screen, said apparatus comprising means including an inductive coil for detecting a magnetic field generated by the scan of said electron beam on said viewing screen, and means for activating a generation of a signal indicative of a detection of said magnetic field.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein said CRT is included in a television set.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1 wherein said CRT is included in a computer monitor.
Claim 5
Dependent Claim
12 words
The apparatus of claim 1 wherein said signal is an electrical signal.
Claim 6
Dependent Claim
64 words
Apparatus for use with a display device having a screen which is scanned by an electron beam, said apparatus comprising means including an inductive coil for sensing a magnetic field generated by the scan of said electron beam, and means responsive to the sensed magnetic field for determining the time instant at which said electron beam scans across a particular point of said screen.
Claim 7
Dependent Claim
64 words
Apparatus for use with a display device having a screen which is scanned by an electron beam, said apparatus comprising means including an inductive coil for sensing a magnetic field generated by the scan of said electron beam, and means responsive to the sensed magnetic field for determining the time instant at which said electron beam scans across a particular point of said screen.
Claim 8
Dependent Claim
16 words
The apparatus of claim 5 wherein said screen is associated with a cathode ray tube (CRT).
Claim 9
Dependent Claim
13 words
The apparatus of claim 5 wherein said display device is a television set.
Claim 10
Dependent Claim
13 words
The apparatus of claim 5 wherein said display device is a computer monitor.
Claim 11
Independent Claim
73 words
A system having a cathode ray tube (CRT) wherein an electron beam scans a screen associated with said CRT, said system comprising means for displaying a menu of selections on said screen, and means including an inductive coil for detecting a magnetic field generated by the scan of said electron beam on different areas of said screen, each of said different areas corresponding to a particular one of said selections in said menu.
Claim 12
Independent Claim
73 words
A system having a cathode ray tube (CRT) wherein an electron beam scans a screen associated with said CRT, said system comprising means for displaying a menu of selections on said screen, and means including an inductive coil for detecting a magnetic field generated by the scan of said electron beam on different areas of said screen, each of said different areas corresponding to a particular one of said selections in said menu.
Claim 13
Dependent Claim
14 words
The system of claim 9 wherein said CRT is included in a television set.
Claim 14
Dependent Claim
14 words
The system of claim 9 wherein said CRT is included in a computer monitor.
Claim 15
Independent Claim
89 words
A system having a CRT screen which is scanned by an electron beam, said system comprising means for displaying a menu of choices on said CRT screen, means including an inductive coil for detecting a magnetic field generated by the scan of said electron beam on said CRT screen, said detecting means being placed over a particular area of said CRT screen corresponding to a selected one of said choices, and means for determining the location of said particular area on said CRT screen to identify said selected choice.
Claim 16
Independent Claim
89 words
A system having a CRT screen which is scanned by an electron beam, said system comprising means for displaying a menu of choices on said CRT screen, means including an inductive coil for detecting a magnetic field generated by the scan of said electron beam on said CRT screen, said detecting means being placed over a particular area of said CRT screen corresponding to a selected one of said choices, and means for determining the location of said particular area on said CRT screen to identify said selected choice.
Claim 17
Dependent Claim
15 words
The system of claim 12 wherein said CRT screen is included in a television set.
Claim 18
Dependent Claim
15 words
The system of claim 12 wherein said CRT screen is included in a computer monitor.
Claim 19
Independent Claim
64 words
A method for use with a display device having a screen which is scanned by an electron beam, said method comprising the steps of sensing a magnetic field generated by the scan of said electron beam,using an inductive coil and determining, in response to the sensed magnetic field, the time instant at which said electron beam scans across a particular point of said screen.
Claim 20
Independent Claim
64 words
A method for use with a display device having a screen which is scanned by an electron beam, said method comprising the steps of sensing a magnetic field generated by the scan of said electron beam,using an inductive coil and determining, in response to the sensed magnetic field, the time instant at which said electron beam scans across a particular point of said screen.
Claim 21
Dependent Claim
16 words
The method of claim 15 wherein said screen is associated with a cathode ray tube (CRT)
Claim 22
Dependent Claim
13 words
The method of claim 15 wherein said display device is a television set.
Claim 23
Dependent Claim
13 words
The method of claim 15 wherein said display device is a computer monitor.
Claim 24
Independent Claim
77 words
A method for use in a system having a cathode ray tube (CRT) wherein an electron beam scans a screen associated with said CRT, said method comprising the steps of displaying a menu of selections of said screen, and detecting a magnetic field generated by the scan of said electron beam on different areas of said screen, using an inductive coil each of said different areas corresponding to a particular one of said selections in said menu.
Claim 25
Independent Claim
77 words
A method for use in a system having a cathode ray tube (CRT) wherein an electron beam scans a screen associated with said CRT, said method comprising the steps of displaying a menu of selections of said screen, and detecting a magnetic field generated by the scan of said electron beam on different areas of said screen, using an inductive coil each of said different areas corresponding to a particular one of said selections in said menu.
Claim 26
Dependent Claim
14 words
The method of claim 19 wherein said CRT is included in a television set.
Claim 27
Dependent Claim
14 words
The method of claim 19 wherein said CRT is included in a computer monitor.
Claim 28
Independent Claim
95 words
A method for use in a system having a CRT screen which is scanned by an electron beam, said method comprising the steps of displaying a menu of choices on said CRT screen, detecting a magnetic field generated by the scan of said electron beam on said CRT screen by means of a sensor, said sensor comprising an inductive coil being placed over a particular area of said CRT screen corresponding to a selected one of said choices, and determining the location of said particular area on said CRT screen to identify said selected choice.
Claim 29
Independent Claim
95 words
A method for use in a system having a CRT screen which is scanned by an electron beam, said method comprising the steps of displaying a menu of choices on said CRT screen, detecting a magnetic field generated by the scan of said electron beam on said CRT screen by means of a sensor, said sensor comprising an inductive coil being placed over a particular area of said CRT screen corresponding to a selected one of said choices, and determining the location of said particular area on said CRT screen to identify said selected choice.
Claim 30
Dependent Claim
15 words
The method of claim 22 wherein said CRT screen is included in a television set.
Claim 31
Dependent Claim
15 words
The method of claim 22 wherein said CRT screen is included in a computer monitor.
Claim 32
Independent Claim
59 words
A method for use with a CRT having a screen associated therewith, said CRT emitting an electron beam which scans said screen, said means comprising the steps of detecting a magnetic field generated by the scan of said electron beam on said screen, using an inductive coil and generating a signal indicative of a detection of said magnetic field.
Claim 33
Independent Claim
59 words
A method for use with a CRT having a screen associated therewith, said CRT emitting an electron beam which scans said screen, said means comprising the steps of detecting a magnetic field generated by the scan of said electron beam on said screen, using an inductive coil and generating a signal indicative of a detection of said magnetic field.
Claim 34
Dependent Claim
14 words
The method of claim 25 wherein said CRT is included in a television set.
Claim 35
Dependent Claim
14 words
The method of claim 25 wherein said CRT is included in a computer monitor.
Claim 36
Dependent Claim
20 words
The method of claim 25 wherein said signal is an electrical signal induced in the presence of said magnetic field.
Claim 37
Dependent Claim
126 words
Apparatus for use with a CRT, said CRT emitting an electron beam which scans a viewing screen, said apparatus comprising means including an inductive coil responsive to the magnetic field generated by the scan of the electronic beam for generating an induced electrical signal, means responsive to said induced electrical signal, whose amplitude exceeds a predetermined amplitude level, for generating a pass signal, and means responsive to a receipt of synchronization signals marking the start of each scan of said electron beam and a receipt of said pass signal for determining the length of time by which the last received synchronization signal respective of said pass signal leads said pass signal, said determining means generating a signal indicative of the value of said length of time.
Claim 38
Dependent Claim
126 words
Apparatus for use with a CRT, said CRT emitting an electron beam which scans a viewing screen, said apparatus comprising means including an inductive coil responsive to the magnetic field generated by the scan of the electronic beam for generating an induced electrical signal, means responsive to said induced electrical signal, whose amplitude exceeds a predetermined amplitude level, for generating a pass signal, and means responsive to a receipt of synchronization signals marking the start of each scan of said electron beam and a receipt of said pass signal for determining the length of time by which the last received synchronization signal respective of said pass signal leads said pass signal, said determining means generating a signal indicative of the value of said length of time.
Claim 39
Dependent Claim
31 words
The apparatus of claim 29 wherein said induced electrical signal comprises spikes, and said generating means is responsive to the highest spike of each signal whose amplitude exceeds a predetermined threshold.
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) | 1996-02-02 | 1996-08-03 | 1997-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-02 | 2000-08-03 | 2001-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-02 | 2004-08-03 | 2005-02-02 | $7700.00 | Window Closed / Lapsed |