APPARATUS FOR PROCESSING VIDEO, METHOD OF DRIVING APPARATUS FOR PROCESSING VIDEO, AND COMPUTER READABLE RECORDING MEDIUM

• US 20170104987A1
• Filed: 09/22/2016
• Published: 04/13/2017
• Est. Priority Date: 10/08/2015
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: WON, Kang-young
• Granted Patent: US 9,854,233 B2
• Time in Patent Office: Days
• CPC Class Codes: G09G 2330/12 Test circuits or failure detection circuits included in a display system, as permanent part thereof
• CPC Class Codes: G09G 2340/02 Handling of images in compressed format, e.g. JPEG, MPEG
• CPC Class Codes: G09G 2370/14 Use of low voltage differential signaling [LVDS] for display data communication
• CPC Class Codes: G09G 3/006 Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309
• CPC Class Codes: 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
• CPC Class Codes: H04B 3/46 Monitoring; Testing
• CPC Class Codes: H04N 17/004 for digital television systems

Abstract

An apparatus for processing a video, a method of driving the apparatus for processing the video, and a computer readable recording medium are provided. The apparatus includes a storage unit configured to store a plurality of set values corresponding to at least one factor used for a quality measurement of a communication signal line, and a controller configured to transmit a plurality of test signals respectively corresponding to the plurality of set values to a signal receiver connected to the communication signal line and receive a plurality of regression signals respectively corresponding to the plurality of transmitted test signals from the signal receiver. The controller determines a set value of the factor based on the plurality of received regression signals and transmits a signal to the signal receiver based on the determined set value of the factor.

Claims

1. An apparatus for processing a video, the apparatus comprising:

a storage unit configured to store a plurality of set values corresponding to at least one factor used for a quality measurement of a communication signal line; and

a controller configured to transmit a plurality of test signals respectively corresponding to the plurality of set values to a signal receiver connected to the communication signal line and receive a plurality of regression signals respectively corresponding to the plurality of transmitted test signals from the signal receiver,

wherein the controller determines a set value of the factor based on the plurality of received regression signals and transmits a signal to the signal receiver based on the set value of the factor.

2. The apparatus of claim 1, wherein the factor is at least one selected from a voltage level, a timing skew, a preemphasis, and an equalizer.

3. The apparatus of claim 2, wherein the controller determines set values of a candidate group, which are determined as passing a check result, from the plurality of set values and determines one of a minimum value and an intermediate value of the set values of the candidate group as a final set value.

4. The apparatus of claim 3, wherein the final set value designated as the minimum value is associated with a delay of the signal that is transmitted to the signal receiver through the communication signal line.

5. The apparatus of claim 1, wherein the controller checks a regression signal, which is looped back, by connecting one signal line and another signal line of a plurality of signal lines connected to the signal receiver to each other in the signal receiver.

6. The apparatus of claim 5, wherein the controller transmits a control signal to the signal receiver to loop back a test signal, wherein the control signal connects the one signal line and the another signal line of the plurality of signal lines to each other.

7. The apparatus of claim 5, wherein the plurality of signal lines comprise differential signal lines that transmit the signal in differential signal form,

wherein the controller connects one of the differential signal lines and another differential signal line to each other to loop back a test signal.

8. The apparatus of claim 1, wherein the storage unit stores a reference value comprising a criterion of a comparison to check a received regression signal,

wherein the controller checks the received regression signal based on the stored reference value.

9. The apparatus of claim 1, wherein a test signal is a signal comprising a voltage level,

wherein the controller determines a final set value by checking the voltage level of a regression signal into which a received regression signal is converted by an Analog-Digital-Converter (ADC).

10. The apparatus of claim 1, wherein a test signal is a signal comprising bit information,

wherein the controller determines a final set value by checking a bit error of a received regression signal.

11. A method of driving an apparatus for processing a video, the method comprising:

storing a plurality of set values corresponding to at least one factor used for a quality measurement of a communication signal line;

transmitting a plurality of test signals respectively corresponding to the plurality of set values to a signal receiver connected to the communication signal line and receiving a plurality of regression signals respectively corresponding to the plurality of transmitted test signals from the signal receiver; and

determining a set value of the factor based on a plurality of received regression signals and transmitting a signal to the signal receiver based on the set value of the factor.

12. The method of claim 11, wherein the factor is at least one selected from a voltage level, a timing skew, a preamphasis, and an equalizer.

13. The method of claim 12, wherein the transmitting of the signal comprises:

determining set values of a candidate group, which are determined as passing a check result, from the plurality of set values; and

determining one of a minimum value and an intermediate value of the determined set values of the candidate group as a final set value.

14. The method of claim 13, wherein the final set value designated as the minimum value is associated with a delay of the signal transmitted to the signal receiver through the communication signal line.

15. The method of claim 11, wherein the transmitting of the signal comprises checking a regression signal, which is looped back, by connecting one signal line and another signal line of a plurality of signal lines connected to the signal receiver to each other in the signal receiver.

16. The method of claim 15, further comprising:

transmitting a control command to the signal receiver in order to loop back a test signal, wherein the control command connects one signal line and another signal line of the plurality of signal lines to each other.

17. The method of claim 15, wherein the plurality of signal lines comprise differential signal lines transmitting the signal in differential signal form,

wherein the method further comprises connecting one differential signal line and another differential signal line of the differential signal lines to each other in order to loop back a test signal.

18. The method of claim 11, wherein:

the storing comprises storing a reference value that is a criterion of a comparison to check a received regression signal; and

the transmitting of the signal comprises checking the received regression signal based on the stored reference value.

19. The method of claim 11, wherein a test signal is a signal comprising a voltage level,

wherein the transmitting of the signal comprising determining a set value by checking the voltage level of a regression signal into which a received regression signal is converted by an ADC (Analog-Digital-Converter).

20. A non-transitory computer readable recording medium comprising a program for executing a method of driving an apparatus for processing a video, the method comprising:

transmitting a plurality of test signals respectively corresponding to a plurality of set values corresponding to at least one factor used for a quality measurement of a communication signal line to a signal receiver connected to the communication signal line and receiving a plurality of regression signals respectively corresponding to a plurality of transmitted test signals from the signal receiver; and

determining a set value of the factor based on the plurality of received regression signals and transmitting a signal to the signal receiver based on the set value of the factor.