US 11,582,368 B2Granted

Signal processing method and device, and display apparatus

AssigneeBoe Technology Group Co., Ltd.

InventorsXitong Ma, Xiaodong Shi, Lihua Geng, Youxiang Xia, Xiao Zhang

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Abstract

A signal processing method includes: obtaining a first frame synchronization signal including a plurality of first pulses, a period between a trailing edge of a first pulse and a leading edge of a next first pulse being a first time period, which corresponding to a first integer number of pulses of a first pixel clock signal; generating a synchronization calibration signal including a plurality of second pulses, a trigger edge of each second pulse being at a same time as the trailing edge of the first pulse; and generating a second frame synchronization signal including a plurality of third pulses, a period between the trigger edge of each second pulse and a leading edge of a third pulse closest to the second pulse after the second pulse being a second time period, which corresponding to a first integer number of pulses of the second pixel clock signal.

Claims20

Dependent claims

A signal processing method, comprising:

obtaining a first frame synchronization signal including a plurality of first pulses, wherein a period between a trailing edge of a first pulse and a leading edge of a next first pulse is a first time period, and the first time period corresponds to a first integer number of pulses of a first pixel clock signal;
generating a synchronization calibration signal including a plurality of second pulses, wherein a trigger edge of each second pulse is at a same time as the trailing edge of the first pulse;
the trigger edge of the second pulse is a leading edge or a trailing edge of the second pulse, and a pulse width of the second pulse is equal to a pulse width of the first pixel clock signal or a pulse width of a second pixel clock signal;
and
generating a second frame synchronization signal including a plurality of third pulses, wherein a period between the trigger edge of each second pulse and a leading edge of a third pulse closest to the second pulse after the second pulse is a second time period, and the second time period corresponds to a first integer number of pulses of the second pixel clock signal.

2 more elements

A signal processing device;

comprising:
a signal input unit configured to obtain a first frame synchronization signal, wherein the first frame synchronization signal includes a plurality of first pulses, and a period between a trailing edge of a first pulse and a leading edge of a next first pulse is a first time period;
and the first time period corresponds to a first integer number of pulses of a first pixel clock signal;
a first signal processing unit configured to generate a synchronization calibration signal, wherein the synchronization calibration signal includes a plurality of second pulses, and a trigger edge of each second pulse is at a same time as the trailing edge of the first pulse;
and the trigger edge of the second pulse is a leading edge or a trailing edge of the second pulse, and a pulse width of the second pulse is equal to a pulse width of the first pixel clock signal or a pulse width of a second pixel clock signal;
and
a second signal processing unit configured to generate a second frame synchronization signal, wherein the second frame synchronization signal includes a plurality of third pulses;
and a period between the trigger edge of each second pulse and a leading edge of a third pulse closest to the second pulse after the second pulse is a second time period, and the second time period corresponds to a first integer number of pulses of the second pixel clock signal.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/598,952Filed 25 Dec 2020
Published: US 2022/0400190 A115 Dec 2022
Granted: 14 Feb 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04N 5/06
Synchronising: generation of synchronising signals
G09G 5/12
Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators: synchronisation between…
H04N 5/08
Synchronising: separation of synchronising signals from picture signals
H04N 21/43632
Adapting the video stream to a specific local network, e.g. a Bluetooth® network: involving a wired protocol, e.g. IEEE 1394