Pointing device, display apparatus and pointing system, and location data generation method and display method using the same
AssigneeSamsung Electronics Co., Ltd.
InventorsByung-seok Soh, Sang-on Choi, Im-su Choi
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Abstract
A pointing device, a display apparatus and a pointing system, and a location data generation method and a display method using the same are provided. The pointing device includes a sensor that detects signals, a storage unit which stores a signal pattern and a controller which generates location data corresponding to a time at which a signal is detected. Using the detected signals, it is possible to more precisely determine a location of the pointing device on a display apparatus, and to minimize errors caused by delays that may occur when the pointing device is wirelessly connected to the display apparatus.
Claims23
A pointing device comprising:
- a sensor which detects a first signal and a second signal;
- a storage unit which stores a preset signal pattern;
- and
- a controller which generates a first pattern that represents a time at which the first signal is detected, compares the preset signal pattern to the first pattern, and generates location data corresponding to a time at which the second signal is detected according to a result of comparison.
A display apparatus comprising:
- a display panel;
- a driving unit which applies a driving voltage to the display panel;
- and
- a controller which controls the driving unit to apply the driving voltage to the display panel at a first time and at a second time,
- wherein the display panel emits, to an external device, a first signal having a first pattern when the driving voltage is applied at the first time and emits a second signal, which causes the external device to generate location data, when the driving voltage is applied at the second time.
A display method comprising:
- emitting a first signal having a first pattern;
- emitting a second signal;
- detecting the first signal and second signal, and generating, if the first pattern is at least partly identical to a pre-stored pattern, data regarding a location on a display in which the first signal and second signal are detected based on the second signal;
- and
- displaying an output based on the generated data at the location.
A pointing device comprising:
- a sensor which detects a first signal and a second signal;
- a storage unit which stores a preset signal pattern;
- and
- a controller which generates a first pattern based on the detected first signal, determines a reference time by comparing the preset signal pattern to the first pattern, and generates location data corresponding to a time at which the second signal is detected and the reference time.
A display apparatus comprising:
- a display panel;
- a driving unit which applies a driving voltage to the display panel;
- and
- a controller which controls the driving unit to apply the driving voltage to the display panel at a first time and at a second time,
- wherein the display panel emits a first signal having a first pattern when the driving voltage is applied at the first time and emits a second signal when the driving voltage is applied at the second time,
- wherein the second signal comprises a first infrared (IR) signal which is sequentially emitted from rows of cells of the display panel, and a second IR signal which is sequentially emitted from columns of cells of the display panel.
A display apparatus comprising:
- a display panel;
- a driving unit which applies a driving voltage to the display panel;
- and
- a controller which controls the driving unit to apply the driving voltage to the display panel at a first time and at a second time,
- wherein the display panel emits a first signal having a first pattern when the driving voltage is applied at the first time and emits a second signal when the driving voltage is applied at the second time,
- wherein the first signal is an electromagnetic interference (EMI) signal which is emitted in response to the applied driving voltage.
Dependencies are inferred from the claim text.