US 10,762,875 B2Granted

Synchronization of a display device in a system including multiple display devices

AssigneeIntel Corporation

InventorsNobuyuki Suzuki, Zhiming Zhuang, Arvind S. Tomar, Nausheen Ansari

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Abstract

Embodiments include apparatuses, methods, and systems including a selector. A selection signal may be provided to the selector to select a first synchronization signal as a control signal when the first synchronization signal is available, otherwise a second first synchronization signal as the control signal. The first or the second synchronization signal may synchronize a first or second display content received by a first or second display device with a first or a second display refresh rate, respectively. The control signal may be provided to a controller to control the second display content received by the second display device. Other embodiments may also be described and claimed.

Claims25

Dependent claims

An apparatus for computing, comprising:

a selector;
a first link coupled to the selector to receive a first synchronization signal from a first display device through the first link between the selector and the first display device, wherein the first synchronization signal is to synchronize a first display content received by the first display device with a first display refresh rate of the first display device, and wherein there is a connection between the first display device and a controller to supply the first synchronization signal to the controller to synchronize the first display content, the first link and the connection providing two different signal paths disjoint from each other;
a second link coupled to the selector to receive a second synchronization signal from a second display device, wherein the second synchronization signal is to synchronize a second display content received by the second display device with a second display refresh rate of the second display device;
a third link coupled to the selector to provide a control signal to the controller to control the second display content received by the second display device;
and
a fourth link coupled to the selector to provide the selector with a selection signal to select the first synchronization signal as the control signal to be provided to the controller when the first display device is configured to function as a display device and the first synchronization signal is available, otherwise to select the second synchronization signal as the control signal to be provided to the controller when the first display device is not configured to function as a display device.

3 more elements

An apparatus for computing, comprising:

a communication interface to receive a control signal, wherein the control signal is selected by a selector to be a first synchronization signal from a first display device when the first display device is configured to function as a display device and the first synchronization signal is available, otherwise is selected by the selector to be a second synchronization signal from a second display device when the first display device is not configured to function as a display device, wherein the first synchronization signal is to synchronize a first display content received by the first display device with a first display refresh rate of the first display device, and the second synchronization signal is to synchronize a second display content received by the second display device with a second display refresh rate of the second display device;
and
a controller coupled to the communication interface to determine to transmit the second display content to the second display device based on the control signal, wherein the first synchronization signal is supplied to the selector by a first link between the first display device and the selector, and also supplied to the controller by a connection between the first display device and the controller to supply the first synchronization signal to the controller to synchronize the first display content, the first link and the connection providing two different signal paths disjoint from each other.

A method for communication of display content, comprising:

receiving a control signal, wherein the control signal is selected by a selector to be a first synchronization signal from a first display device when the first display device is configured to function as a display device and the first synchronization signal is available, otherwise is selected by the selector to be a second synchronization signal from a second display device when the first display device is not configured to function as a display device, wherein the first synchronization signal is to synchronize a first display content received by the first display device with a first display refresh rate of the first display device, and the second synchronization signal is to synchronize a second display content received by the second display device with a second display refresh rate of the second display device;
and
transmitting, controlled by a controller, the second display content to the second display device based on the control signal, wherein the first synchronization signal is supplied to the selector by a first link between the first display device and the selector, and also supplied to the controller by a connection between the first display device and the controller to supply the first synchronization signal to the controller to synchronize the first display content, the first link and the connection providing two different signal paths disjoint from each other.

Dependencies are inferred from the claim text.

Facts

Application: 15/944,592Filed 3 Apr 2018
Published: US 2019/0043446 A17 Feb 2019
Granted: 1 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06F 3/1431
Controlling a plurality of local displays, e.g. CRT and flat panel display: using a single graphics controller
G06F 3/0412
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means: digitisers structurally integrated in a display
G06F 3/1446
Controlling a plurality of local displays, e.g. CRT and flat panel display: display composed of modules, e.g. video walls
G09G 5/12
Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators: synchronisation between…

Family

US 2019/0043446 A1Pre-grant publication · published 7 Feb 2019
US 10,762,875 B2This patent

From the US filing history. Foreign family members aren’t listed.

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