US6144367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and system for simultaneous operation of multiple handheld control devices in a data processing system
Assignee: International Business Machines Corp
•
Filing: 1997-03-26
•
Granted: 2000-11-07
•
Expires: 2017-03-26
Abstract
Abstract A method and system for controlling a display of a data processing system uses first and second wireless position control devices, and a control base unit. The first wireless position control device includes an acoustical transducer for transmitting a first ultrasonic carrier signal upon which X-Y position control and/or action control signals generated by the device are imposed. A second wireless position control device includes and acoustical transducer for transmitting a second ultrasonic carrier signal upon which X-Y position control and/or other action control signals generated by the second control device are imposed. The first and second ultrasonic carrier signals have different frequencies. The control base is associated with the data processing system and includes circuitry for receiving and differentiating the first and second ultrasonic carrier signals to generate decoded display control signals. The display control signals are then used to drive the display device. Two users may thus control the display device simultaneously.
Inventors
- 👤 Viktors Berstis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:55
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/038; A; A63; A63F; A63F13/00; A63F13/20; A63F13/23; A63F13/235; A63F13/40; A63F13/42; A63F13/424; A63F13/80; A63F13/843; G05; G05G; G05G9/00; G05G9/02; G05G9/04; G05G9/047; H; H04; H04N; H04N21/00; H04N21/40; H04N21/41; H04N21/422; H04N21/42204; H04N21/47; A63F13/30; A63F13/33; A63F13/335; A63F2300/00; A63F2300/10; A63F2300/1025; A63F2300/1031; A63F2300/40; A63F2300/407; A63F2300/60; A63F2300/6063; A63F2300/6072; A63F2300/80; A63F2300/8088; G05G2009/0474; G05G2009/04744; G06F2203/00; G06F2203/038; G06F2203/0384; H04N21/45; H04N21/462; H04N21/4622; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
174 words
A display control system for simultaneously receiving control signals from a plurality of remote input control devices comprising: a first remote control device having a control element, for producing first control signals in response to manual input, and a transmitter which transmits a first carrier signal having a first frequency modulated by the first control signals; a second remote control device having a control element, for producing second control signals in response to manual input, and a transmitter which transmits a second carrier signal having a second frequency modulated by the second control signals; a receiver having a transducer for simultaneously receiving the first and second carrier signals and converting the signals into a composite electrical signal, a splitter for separating the composite electrical signal into first and second component signals having the first and a second frequencies, and first and second demodulators for deriving the first and second control signals from the first and second component signals, the first and second control signals controlling first and second display elements on a display device.
Claim 2
Dependent Claim
174 words
A display control system for simultaneously receiving control signals from a plurality of remote input control devices comprising: a first remote control device having a control element, for producing first control signals in response to manual input, and a transmitter which transmits a first carrier signal having a first frequency modulated by the first control signals; a second remote control device having a control element, for producing second control signals in response to manual input, and a transmitter which transmits a second carrier signal having a second frequency modulated by the second control signals; a receiver having a transducer for simultaneously receiving the first and second carrier signals and converting the signals into a composite electrical signal, a splitter for separating the composite electrical signal into first and second component signals having the first and a second frequencies, and first and second demodulators for deriving the first and second control signals from the first and second component signals, the first and second control signals controlling first and second display elements on a display device.
Claim 3
Dependent Claim
25 words
The display control system as described in claim 1 wherein the control element of each remote control device is movable in an X-Y coordinate plane.
Claim 4
Dependent Claim
44 words
The display control system as described in claim 1 wherein the control element of each remote control device includes means responsive to positioning of the control element for generating control signals proportional to a position of the control element in the X-Y coordinate plane.
Claim 5
Dependent Claim
30 words
The display control system as described in claim 1 wherein the control element of each remote control device includes at least one control button for generating an action control signal.
Claim 6
Dependent Claim
84 words
The display control system as described in claim 1 wherein the splitter includes: a first filter connected to receive the composite electrical signal and provide a first filtered signal, the first filter allowing signals having the first frequency to pass while blocking the signals of the second frequency; and a second filter connected to receive the composite electrical signal and provide a second filtered signal, the second filter allowing signals having the second frequency to pass while blocking the signals of the first frequency.
Claim 7
Dependent Claim
29 words
The display control system as described in claim 1 wherein the transmitter of the first and second remote control devices is a ceramic transducer producing an acoustical control signal.
Claim 8
Dependent Claim
21 words
The display control system as described in claim 1 wherein the control element of each remote control device is a joystick.
Claim 9
Dependent Claim
19 words
The display control system as described in claim 1 wherein the first and second carrier signals are ultrasonic signals.
Claim 10
Dependent Claim
51 words
The display control system as described in claim 1 wherein the receiver further includes: a first decoder for decoding the output of the first demodulator and providing a decoded first control signal; and a second decoder for decoding the output of the second demodulator and providing a decoded second control signal.
Claim 11
Dependent Claim
81 words
The receiver for simultaneously receiving control signals of at least a first and a second frequency from a plurality of remote control devices, comprising; a transducer for simultaneously receiving first and second carrier signals and converting the signals into a composite electrical signal; a splitter for separating the composite electrical signal into first and second component signals having the first and a second frequencies; and first and second demodulators for deriving the control signals from the first and second component signals.
Claim 12
Dependent Claim
81 words
The receiver for simultaneously receiving control signals of at least a first and a second frequency from a plurality of remote control devices, comprising; a transducer for simultaneously receiving first and second carrier signals and converting the signals into a composite electrical signal; a splitter for separating the composite electrical signal into first and second component signals having the first and a second frequencies; and first and second demodulators for deriving the control signals from the first and second component signals.
Claim 13
Dependent Claim
82 words
The receiver as described in claim 10 wherein the splitter includes: a first filter connected to receive the composite electrical signal and provide a first filtered signal, the first filter allowing signals having the first frequency to pass while blocking the signals of the second frequency; and a second filter connected to receive the composite electrical signal and provide a second filtered signal, the second filter allowing signals having the second frequency to pass while blocking the signals of the first frequency.
Claim 14
Dependent Claim
24 words
The receiver as described in claim 10 wherein the transmitter of the remote control devices is a ceramic transducer producing an acoustical control signal.
Claim 15
Dependent Claim
17 words
The receiver as described in claim 10 wherein the first and second carrier signals are ultrasonic signals.
Claim 16
Dependent Claim
27 words
The receiver as described in claim 10 further including a first decoder for decoding the output of the first demodulator and providing a decoded first control signal.
Claim 17
Dependent Claim
27 words
The receiver as described in claim 10 further including a second decoder for decoding the output of the second demodulator and providing a decoded second control signal.
Claim 18
Dependent Claim
233 words
A display control system for simultaneously receiving control signals from a plurality of remote input control devices comprising: a first remote control device having a control element movable in an X-Y plane, for producing first control signals in response to manual input, and a transmitter which transmits a first carrier signal having a first frequency modulated by the first control signals; a second remote control device having a control element movable in an X-Y plane, for producing second control signals in response to manual input, and a transmitter which transmits a second carrier signal having a second frequency modulated by the second control signals; a receiver having a transducer for simultaneously receiving the first and second carrier signals and converting the signals into a composite electrical signal; a first filter connected to receive the composite electrical signal and provide a first component signal, the first filter allowing signals having the first frequency to pass while blocking the signals of the second frequency; a second filter connected to receive the composite electrical signal and provide a second component signal, the second filter allowing signals having the second frequency to pass while blocking the signals of the first frequency; and first and second demodulators for deriving the first and second control signals from the first and second component signals, the first and second control signals controlling first and second display elements on a display device.
Claim 19
Dependent Claim
233 words
A display control system for simultaneously receiving control signals from a plurality of remote input control devices comprising: a first remote control device having a control element movable in an X-Y plane, for producing first control signals in response to manual input, and a transmitter which transmits a first carrier signal having a first frequency modulated by the first control signals; a second remote control device having a control element movable in an X-Y plane, for producing second control signals in response to manual input, and a transmitter which transmits a second carrier signal having a second frequency modulated by the second control signals; a receiver having a transducer for simultaneously receiving the first and second carrier signals and converting the signals into a composite electrical signal; a first filter connected to receive the composite electrical signal and provide a first component signal, the first filter allowing signals having the first frequency to pass while blocking the signals of the second frequency; a second filter connected to receive the composite electrical signal and provide a second component signal, the second filter allowing signals having the second frequency to pass while blocking the signals of the first frequency; and first and second demodulators for deriving the first and second control signals from the first and second component signals, the first and second control signals controlling first and second display elements on a display device.
References Cited (Backward Citations)
US4111421A
Cited
US4313227A
Cited
US4390877A
Cited
US4565999A
Cited
US4578674A
Cited
US4531740A
Cited
US4988981A
Cited
US4988981B1
Cited
US4814552A
Cited
US4924216A
Cited
US5023943A
Cited
US5098110A
Cited
US5317752A
Cited
US5341167A
Cited
US5423227A
Cited
US5707160A
Cited
US5432932A
Cited
US5606659A
Cited
JPH06238387A
Cited
US5554980A
Cited
US5532753A
Cited
US5435573A
Cited
US5610665A
Cited
US5605505A
Cited
US5461292A
Cited
US5702305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-11-07 | 2004-05-08 | 2004-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-11-07 | 2008-05-08 | 2008-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-11-07 | 2012-05-08 | 2012-11-07 | $7700.00 | Window Closed / Lapsed |