# US 2023/0066902 A1 · Timing Control Circuit and Timing Control Method Thereof

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- Number: US 2023/0066902 A1
- Document ID: US20230066902A1
- Status: Published application
- Kind: A1
- Application number: 17/881,584
- Filed: 2022-08-04
- Published: 2023-03-02
- Earliest claimed: 2021-08-31
- Assignees: Novatek Microelectronics Corp.
- Applicants: NOVATEK Microelectronics Corp.
- Inventors: Huan-Teng Cheng
- Web page: https://patentgrep.com/patent/US20230066902A1

## CPC

- G06F 3/04184: {Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally}
- G09G 3/2092: {Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165)}
- G09G 3/2096: {Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167)}
- G09G 2310/08: Details of timing specific for flat panels, other than clock recovery
- G09G 2320/0247: Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
- G09G 2330/021: Power management, e.g. power saving
- G09G 2340/0435: Change or adaptation of the frame rate of the video stream
- G09G 2354/00: Aspects of interface with display user
- G09G 2370/08: Details of image data interface between the display device controller and the data line driver circuit
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A timing control circuit includes a receiving circuit and a line memory coupled to the receiving circuit. The line memory is configured for outputting a first data signal during a first frame period, and outputting a second data signal during a second frame period. An end time point of the first frame period coincides with the start time point of the second frame period. One of the first data signal and the second data signal is corresponding to a long H mode; the other of the first data signal and the second data signal is corresponding to a long V mode.

## Claims

### Claim 1

A timing control circuit, comprising:
a receiving circuit; and
a line memory, coupled to the receiving circuit, wherein the line memory is configured for:
outputting a first data signal during a first frame period; and
outputting a second data signal during a second frame period,
wherein an end time point of the first frame period coincides with a start time point of the second frame period,
wherein one of the first data signal and the second data signal corresponds to a long H mode, and the other of the first data signal and the second data signal corresponds to a long V mode.

### Claim 2 (depends on 1)

The timing control circuit of claim 1, wherein the receiving circuit is configured to:
receiving a first external signal, wherein the first external signal corresponds to a first period; and
receiving a second external signal, wherein the second external signal corresponds to a second period, the first period and the second period are not equal, both the first period and the second period are a horizontal period, a horizontal active line, a blanking-or-low-power period, a horizontal back porch, or a horizontal front porch.

### Claim 3 (depends on 1)

The timing control circuit of claim 1, wherein the receiving circuit is configured to:
receiving a second external signal, wherein the second external signal corresponds to a second period,
wherein based on the second period, the second data signal corresponds to the long V mode or the long H mode.

### Claim 4 (depends on 1)

The timing control circuit of claim 1, wherein
based on a fact that the first frame period of the first data signal is longer than the second frame period of the second data signal, the first data signal corresponds to the long H mode, and
based on a fact that the first frame period of the first data signal is shorter than the second frame period of the second data signal, the first data signal corresponds to the long V mode.

### Claim 5 (depends on 1)

The timing control circuit of claim 1, wherein the first frame period of the first data signal is not equal to the second frame period of the second data signal, and a first touch report rate corresponding to the first frame period is equal to a second touching reporting rate corresponding to the second frame period.

### Claim 6 (depends on 1)

The timing control circuit of claim 1, wherein one of the first data signal and the second data signal corresponds to the long H mode and an extended H mode.

### Claim 7 (depends on 1)

The timing control circuit of claim 1, wherein the receiving circuit is configured to:
receiving a first external signal, wherein the first external signal corresponds to a first period, there is a first delay between the first data signal and the first external signal, and the first delay is proportional to the first period; and
receiving a second external signal, wherein the second external signal corresponds to a second period, there is a second delay between the first data signal and the second external signal, the second delay is proportional to the second period, and the first delay is not equal to the second delay.

### Claim 8 (depends on 7)

The timing control circuit of claim 7, wherein a ratio of the first delay to the second delay is equal to the ratio of the first period to the second period.

### Claim 9 (depends on 1)

The timing control circuit of claim 1, wherein the first frame period of the first data signal is equal to the second frame period of the second data signal, and a first touch report rate corresponding to the first data signal is not equal to a second touching reporting rate corresponding to the second data signal.

### Claim 10 (depends on 1)

The timing control circuit of claim 1, wherein a first vertical front porch time corresponding to the first data signal is not equal to a second vertical front porch time corresponding to the first data signal.

### Claim 11

A timing control method, comprising:
outputting a first data signal during a first frame period; and
outputting a second data signal during a second frame period,
wherein an end time point of the first frame period coincides with a start time point of the second frame period,
wherein one of the first data signal and the second data signal corresponds to a long H mode, and the other of the first data signal and the second data signal corresponds to a long V mode.

### Claim 12 (depends on 11)

The timing control method according to claim 11, further comprising:
receiving a first external signal, wherein the first external signal corresponds to a first period; and
receiving a second external signal, wherein the second external signal corresponds to a second period, the first period and the second period are not equal, both the first period and the second period are a horizontal period, a horizontal active line, a blanking-or-low-power period, a horizontal back porch, or a horizontal front porch;
wherein based on a difference between a time length of the first period and a time length of the second period, the first data signal and the second data signal correspond to different ones of the long H mode and the long V mode respectively.

### Claim 13 (depends on 11)

The timing control method according to claim 11, further comprising:
receiving a second external signal, wherein the second external signal corresponds to a second period,
wherein based on the second period, the second data signal corresponds to the long V mode or the long H mode.

### Claim 14 (depends on 11)

The timing control method according to claim 11, wherein
based on a fact that the first frame period of the first data signal is longer than the second frame period of the second data signal, the first data signal corresponds to the long H mode, and
based on a fact that the first frame period of the first data signal is shorter than the second frame period of the second data signal, the first data signal corresponds to the long V mode.

### Claim 15 (depends on 11)

The timing control method according to claim 11, wherein the first frame period of the first data signal is not equal to the second frame period of the second data signal, and a first touch report rate corresponding to the first frame period is equal to a second touching reporting rate corresponding to the second frame period.

### Claim 16 (depends on 11)

The timing control method according to claim 11, wherein one of the first data signal and the second data signal corresponds to the long H mode and an extended H mode.

### Claim 17 (depends on 11)

The timing control method according to claim 11, further comprising:
receiving a first external signal, wherein the first external signal corresponds to a first period, there is a first delay between the first data signal and the first external signal, and the first delay is proportional to the first period; and
receiving a second external signal, wherein the second external signal corresponds to a second period, there is a second delay between the first data signal and the second external signal, the second delay is proportional to the second period, and the first delay is not equal to the second delay.

### Claim 18 (depends on 17)

The timing control method according to claim 17, wherein a ratio of the first delay to the second delay is equal to the ratio of the first period to the second period.

### Claim 19 (depends on 11)

The timing control method according to claim 11, wherein the first frame period of the first data signal is equal to the second frame period of the second data signal, and a first touch report rate corresponding to the first data signal is not equal to a second touching reporting rate corresponding to the second data signal.

### Claim 20 (depends on 11)

The timing control method according to claim 11, wherein a first vertical front porch time corresponding to the first data signal is not equal to a second vertical front porch time corresponding to the first data signal.
