WO2019196685A1 - 信号调节装置及调节方法、测试设备 - Google Patents

信号调节装置及调节方法、测试设备 Download PDF

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Publication number
WO2019196685A1
WO2019196685A1 PCT/CN2019/080521 CN2019080521W WO2019196685A1 WO 2019196685 A1 WO2019196685 A1 WO 2019196685A1 CN 2019080521 W CN2019080521 W CN 2019080521W WO 2019196685 A1 WO2019196685 A1 WO 2019196685A1
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WIPO (PCT)
Prior art keywords
signal
gear position
circuit
determining
feedback signal
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Application number
PCT/CN2019/080521
Other languages
English (en)
French (fr)
Inventor
闵泰烨
张智
唐秀珠
陈帅
唐滔良
田振国
梁雪波
胡双
熊丽军
董兴
Original Assignee
京东方科技集团股份有限公司
重庆京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 重庆京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/499,728 priority Critical patent/US11404024B2/en
Publication of WO2019196685A1 publication Critical patent/WO2019196685A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/006—Details of the interface to the display terminal
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • H04N17/045—Self-contained testing apparatus
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof

Definitions

  • Embodiments of the present disclosure relate to a signal adjustment apparatus, an adjustment method, and a test apparatus.
  • a video signal is transmitted between the driving circuit and the display screen through a video signal interface, such as an embedded video signal interface EDP (Embedded Display Port).
  • a video signal interface such as an embedded video signal interface EDP (Embedded Display Port).
  • EDP embedded Display Port
  • At least some embodiments of the present disclosure provide a signal conditioning apparatus including: a gear position controller, a gear position circuit, a comparison circuit, a selection circuit, wherein
  • the gear circuit is electrically connected to the selection circuit
  • the gear position controller is electrically connected to the comparison circuit through the gear position circuit, configured to perform gear position adjustment on the first signal to generate a gear position signal, and output the generated by the gear position circuit output Gear signal
  • the comparison circuit is electrically connected to the selection circuit, configured to determine that the gear position signal meets a preset condition, and generate a corresponding feedback signal in response to determining that the gear position signal satisfies the preset condition and Output to the selection circuit;
  • the selection circuit is configured to output a gear position signal corresponding to the feedback signal as an adjusted signal.
  • the signal conditioning apparatus further includes: a first sampling circuit, wherein the first sampling circuit is electrically connected to the gear position controller and configured to acquire and output the first signal .
  • the selection circuit includes: a switch controller and a switch circuit
  • the gear circuit is electrically connected to the switch circuit
  • the comparison circuit is electrically connected to the switch controller and configured to output the feedback signal to the switch controller;
  • the switch controller is electrically connected to the switch circuit and configured to turn on a switch circuit corresponding to the feedback signal to output a gear position signal corresponding to the feedback signal as an adjusted signal.
  • the signal adjusting device includes five gear positions, and the five gear circuits are all disposed in the gear position controller;
  • the selection circuit includes five switching circuits, each of which is disposed in the switching controller.
  • the comparison circuit includes a first comparator electrically coupled to the gear stage circuit and the switch controller, and configured Determining: determining a primary difference between the gear position signal and a preset reference signal, determining that the primary difference value is greater than a first preset threshold, and determining that the primary difference value is greater than the first predetermined Set a threshold value to generate a corresponding feedback signal and output it.
  • the comparison circuit includes: a first comparator and a second comparator;
  • the first comparator is electrically connected to the gear position circuit; the first comparator is electrically connected to the second comparator; and the second comparator is further electrically connected to the switch controller;
  • the first comparator is configured to determine a primary difference between the gear position signal and a preset reference signal, determine that the primary difference value is greater than a first preset threshold, and determine the primary difference in response to determining The value is greater than the first preset threshold, and the gear position signal corresponding to the primary difference value is output as a primary feedback signal;
  • the second comparator is configured to determine a second-order difference between the second signal and the primary feedback signal, generate a corresponding feedback signal according to the second-level difference, and output the signal to the switch controller.
  • the second comparator is further configured to: determine that the second level difference is less than or equal to a second predetermined threshold, and in response to determining the The second difference is less than or equal to the second preset threshold, and a secondary feedback signal corresponding to the second difference is generated as the feedback signal.
  • the second comparator is further configured to: determine a minimum value of the second-level differences, according to the The minimum value generates a corresponding secondary feedback signal as the feedback signal.
  • the first comparator is electrically coupled to at least two of the gear shift circuits.
  • the signal conditioning apparatus further includes: a second sampling circuit, wherein the second sampling circuit is configured to acquire and output the second signal, and the second sampling circuit and the The second comparator is electrically connected.
  • the signal conditioning apparatus further includes:
  • a reset circuit electrically coupled to the gear position controller, the reset circuit configured to generate a reset signal to perform the adjusted signal upon receiving an adjustment command for the adjustment and output cycle of the adjusted signal Reset.
  • the first signal and the second signal are both video signals.
  • At least some embodiments of the present disclosure provide a signal conditioning method, including:
  • the gear position signal corresponding to the feedback signal is output as an adjusted signal.
  • the determining that the gear position signal satisfies a preset condition, and in response to determining that the gear position signal satisfies the preset condition, generating a corresponding Feedback signals including:
  • Determining a primary difference between the gear position signal and a preset reference signal determining that the primary difference value is greater than a first preset threshold, and determining that the primary difference value is greater than the first predetermined threshold value , generating a corresponding feedback signal.
  • the determining that the gear position signal satisfies a preset condition, and in response to determining that the gear position signal satisfies the preset condition, generating a corresponding Feedback signals including:
  • the generating a corresponding feedback signal according to the second difference value includes:
  • a level feedback signal is used as the feedback signal.
  • the generating a corresponding feedback signal according to the second difference value includes:
  • the signal adjustment method according to at least one embodiment of the present disclosure further includes:
  • a reset signal is generated to reset the adjusted signal.
  • the first signal and the second signal are both video signals.
  • At least some embodiments of the present disclosure also provide a testing device, including:
  • a drive circuit configured to drive the display
  • the signal conditioning device is configured to obtain the first signal from the drive circuit and output the adjusted signal to the display screen.
  • the first signal is sampled from a signal output port of the drive circuit.
  • FIG. 1 is a schematic block diagram of a signal conditioning apparatus provided by at least some embodiments of the present disclosure
  • FIG. 2 is a schematic structural diagram of a signal adjusting apparatus according to at least some embodiments of the present disclosure
  • FIG. 3 is a schematic structural view of an example of the signal adjusting device shown in FIG. 2;
  • FIG. 4 is a schematic structural view of another example of the signal adjusting device shown in FIG. 2;
  • FIG. 5 is a schematic flow chart of a signal adjustment method provided by at least some embodiments of the present disclosure.
  • FIG. 6 is a schematic block diagram of a test device provided by at least some embodiments of the present disclosure.
  • the video signal of the driving circuit When the video signal of the driving circuit is transmitted to the display screen, the video signal tends to have different degrees of attenuation. When the attenuation exceeds a certain threshold, the signal matching is poor, which leads to a flash screen.
  • a signal conditioning apparatus 1000 may include: a gear position controller 1100, a gear position circuit 1200, a comparison circuit 1300, and a selection circuit 1400;
  • the gear position circuit 1200 is electrically connected to the selection circuit 1400;
  • the gear position controller 1100 is electrically connected to the comparison circuit 1300 through the gear position circuit 1200 for gear position adjustment of the first signal to generate a gear position signal, and is generated by the gear position circuit 1200.
  • the comparison circuit 1300 is electrically connected to the selection circuit 1400, configured to determine that the gear position signal meets a preset condition, and generate corresponding feedback in response to determining that the gear position signal satisfies the preset condition Signal and output to the selection circuit 1400;
  • the selection circuit 1400 is configured to output a gear position signal corresponding to the feedback signal as an adjusted signal.
  • signal conditioning devices in accordance with at least some embodiments of the present disclosure may be utilized to adjust various signals, including but not limited to video signals, which are not limited by the embodiments of the present disclosure.
  • FIG. 2 is a schematic structural diagram of a signal adjusting apparatus according to at least some embodiments of the present disclosure. As shown in FIG. 2, the apparatus includes a first sampling circuit 100, a gear position controller 200, at least one gear position circuit 300, a comparison circuit 400, a switch controller 500, and at least one switching circuit 600.
  • the first sampling circuit 100 is electrically connected to the gear position controller 200; the gear position controller 200 is electrically connected to at least one gear position circuit 300; at least one gear position circuit 300 is connected to the comparison circuit 400 and is respectively electrically connected to the at least one switching circuit 600
  • the comparison circuit 400 is electrically connected to the switch controller 500; the switch controller 500 is electrically connected to the at least one switch circuit 600.
  • the signal conditioning device may not include the first sampling circuit 100, and the first signal is provided by the other circuit to the signal conditioning device, which is not limited by the embodiments of the present disclosure.
  • the first sampling circuit 100 acquires the first signal Vtp4_od of the first sampling point, and outputs the first signal Vtp4_od to the gear position controller 200, where the first sampling point is an EDP interface of the driving circuit, which can be represented by TP4;
  • the gear position controller 200 performs at least one gear position adjustment on the first signal Vtp4_od to generate a corresponding at least one gear position signal, and outputs the at least one gear position signal to the comparison circuit 400 through the at least one gear position circuit 300;
  • the comparison circuit 400 determines whether the gear position signals generated by the gear position controller 200 meet the preset condition, and if the preset condition is met, generates a corresponding feedback signal and outputs the corresponding feedback signal to the switch controller 500;
  • the switch controller 500 turns on the switch circuit 600 corresponding to the feedback signal, and outputs the gear position signal corresponding to the feedback signal as the adjusted signal Vod_out.
  • the switch controller 500 and the switch circuit 600 are one example of the above-described selection circuit, however, it should be understood that the embodiments of the present disclosure are not limited thereto.
  • the gear position adjustment of the first signal Vtp4_od can be realized by the gear position controller 200 and the gear position circuit 300, and the attenuation of the first signal is reduced; and the signal Vod_out that meets the requirements is filtered by the comparison circuit 400.
  • the manner of setting the gear position circuit 300 and the switch circuit 600 is not limited in the embodiment of the present disclosure.
  • the gear position circuit 300 can be independently set or integrated with the gear position controller 200, and the switch circuit 600 can be independently set or integrated with the switch controller 500. Users can flexibly set according to actual needs.
  • the gear circuit 300 is integrally provided with the gear position controller 200, and the switch circuit 600 can be integrated with the switch controller 500 to improve the integration degree of the circuit, reduce the volume of the circuit, and save Space resources.
  • At least one gear circuit 300 includes five gear circuits, and five gear circuits 300 are each disposed in the gear controller 200.
  • at least one switch circuit 600 includes five switches. The circuit, and the five switch circuits 600 are all disposed in the switch controller 500; exemplarily, the five gear positions 300 correspond to the first pre-emphasis gear position, the pre-emphasis gear, and the swing (Swing) gear position, respectively. The first swing gear position, the second pre-emphasis gear position and the second swing gear position.
  • the embodiment of the present disclosure adjusts the first signal Vtp4_od by the above five gear positions, and can increase the signal strength and signal creep speed of the first signal Vtp4_od, and reduce signal attenuation.
  • the embodiment of the present disclosure can realize automatic selection and switching of gear positions, avoiding manual selection and switching, and improving the efficiency of gear position adjustment.
  • the comparison circuit 400 is specifically a first comparator 401.
  • a reference comparator determining a primary difference between each gear position signal and a preset reference signal Vref, determining and determining Whether the primary difference value is greater than the first predetermined threshold, and if so, generates a corresponding feedback signal and outputs to the switch controller 500.
  • the reference signal Vref may specifically be 120 mV (millivolt).
  • the reference signal Vref in the embodiment of the present disclosure is generally determined according to an industry standard that can meet the matching requirement.
  • the first preset threshold is also set according to an industry standard. If the primary difference is greater than the first preset threshold, Then, the corresponding gear position signal can meet the industry standard, so the signal output by the adjusting device in the embodiment of the present disclosure has high matching with the signal outputted by the display screen.
  • the above signal conditioning apparatus further includes a second sampling circuit 700.
  • the comparison circuit 400 specifically includes a first comparator 401 and a second comparator 402.
  • the first comparator 401 and at least two The gear stage circuit 300 is electrically connected; the first comparator 401 and the second sampling circuit 700 are both electrically connected to the second comparator 402; the second comparator 402 is also electrically connected to the switch controller 500.
  • the signal conditioning device may not include the second sampling circuit 700, and the second signal is provided by the other circuit to the signal conditioning device, which is not limited by the embodiments of the present disclosure.
  • the working principle of the second sampling circuit 700, the first comparator 401 and the second comparator 402 is as follows:
  • the second sampling circuit 700 acquires the second signal Vtp3_od of the second sampling point display signal receiving end, and outputs the second signal Vtp3_od to the second comparator 402;
  • the second sampling point is an EDP interface of the display screen, which can be represented by TP3;
  • the first comparator 401 determines a primary difference between each gear position signal and a preset reference signal Vref, and determines whether the determined primary difference value is greater than a first preset threshold, and if so, the file corresponding to the primary difference value
  • the bit signal is used as a primary feedback signal, and the primary feedback signal is output to the second comparator 402;
  • the second comparator 402 determines a second difference between the second signal Vtp3_od acquired and output by the second sampling circuit 700 and each primary feedback signal, generates a corresponding feedback signal according to the second difference value, and outputs the signal to the switch control. 500.
  • the second comparator 402 determines a second difference between the second signal Vtp3_od and each of the primary feedback signals, and determines a minimum second-order difference, according to the minimum The second difference value generates a corresponding secondary feedback signal, and the secondary feedback signal is output to the switch controller 500 as a final feedback signal.
  • the second comparator 402 can determine the primary feedback signal with the smallest attenuation relative to the second signal Vtp3_od by its comparison function. Further, the adjusted first signal Vtp4_od can be attenuated relative to the second signal Vtp3_od. The minimum, correspondingly, the signal matching of the drive circuit and the display screen is optimal, reducing the splash screen caused by signal attenuation.
  • the second comparator 402 is further configured to: determine a second difference between the second signal Vtp3_od and each primary feedback signal, and determine whether the determined second-order difference is greater than
  • the second preset threshold may be set by the user according to actual requirements; if the second difference is not greater than the second preset threshold, the corresponding secondary feedback signal is generated according to the second difference, and the second The level feedback signal is output as a feedback signal to the switch controller 500.
  • the second comparator 402 can determine the primary feedback signal that meets the user's needs through its comparison function. Further, the attenuation of the adjusted first signal Vtp4_od relative to the second signal Vtp3_od can be made to conform to the actual user.
  • the second preset threshold can be set by the user according to actual needs, and the flexibility of signal adjustment is increased, so that the signal adjustment and the final display effect are more in line with the user's needs.
  • the adjusting apparatus further includes a reset circuit 800 electrically connected to the gear position controller 200 for receiving an adjustment instruction for the adjustment and output period of the signal, according to the The adjustment command generates a reset signal to reset the adjusted signal, causing the signal conditioning device to return to the initial state so as to be ready for the adjustment and output of the next cycle.
  • a reset circuit 800 electrically connected to the gear position controller 200 for receiving an adjustment instruction for the adjustment and output period of the signal, according to the The adjustment command generates a reset signal to reset the adjusted signal, causing the signal conditioning device to return to the initial state so as to be ready for the adjustment and output of the next cycle.
  • an adjustment command for adjusting the adjustment and output periods is generated and transmitted to the reset circuit 800, thereby resetting the adjusted state by the reset circuit 800.
  • the working principle of an exemplary adjusting device is further illustrated by taking the circuit schematic shown in FIG. 3 as an example.
  • the first signal Vtp4_od obtained by the first sampling circuit 100 is output to the gear position controller 200, and the gear position controller 200 controls the gear position circuit 300 (such as the circuit of the serial numbers 1 to 5 in FIG. 3) to sequentially adjust the Vtp4_od to obtain Gear position signals 1 to 5 and output to the first comparator 401;
  • the first comparator 401 compares the gear position signals 1 to 5 with a preset reference signal Vref (eg, 120 mv), and determines a difference between the gear position signal and the Vref. After comparison, the difference between the gear position signal 4 and the Vref is greater than a preset threshold, thus outputting a feedback signal corresponding to the difference to the switch controller 500;
  • Vref preset reference signal
  • the switch controller 500 turns on the gear position circuit 300 to which the serial number 4 belongs according to the feedback signal, and outputs the gear position signal 4 corresponding to the gear position circuit 300 as Vod_out, completing the entire signal adjustment process, and the reset circuit 800 receives the adjustment command.
  • the gear position controller 200 is reset to start the work of the next cycle.
  • the first signal Vtp4_od acquired by the first sampling circuit 100 is output to the gear position controller 200, and the gear position controller 200 controls the gear position circuit 300 (such as the circuit of the serial numbers 1 to 5 in FIG. 4) to sequentially adjust the Vtp4_od to obtain Gear position signals 1 to 5 and output to the first comparator 401;
  • the first comparator 401 compares the gear position signals 1 to 5 with a preset reference signal Vref (eg, 120 mv), determines the primary difference value of the gear position signal and Vref, and compares the initials of the gear position signals 2 and 4 with Vref. The difference is greater than the first preset threshold, thus outputting the gear signals 2 and 4 corresponding to the two primary differences to the second comparator 402;
  • Vref preset reference signal
  • the second comparator 402 compares the second signal Vtp3_od obtained by the second sampling circuit 700 with the gear signals 2 and 4, determines the second difference between the two gear signals and Vtp3_od, and determines two second difference values. Comparing, by comparison, the second-order difference corresponding to the gear position signal 4 is the smallest, so that the corresponding feedback signal is generated according to the second-order difference value and output to the switch controller 500;
  • the switch controller 500 turns on the gear position circuit 300 to which the serial number 4 belongs, and outputs the gear position signal 4 corresponding to the gear position circuit 300 as Vod_out to complete the whole signal adjustment process, and the reset circuit 800 resets the gear position control after receiving the adjustment command.
  • the device 200 starts the work of the next cycle.
  • the gear position circuit and the gear position controller Through the gear position circuit and the gear position controller, the first signal received by the display screen can be adjusted, and the comparison signal can compare and filter the first signal, so that the attenuation of the adjusted signal meets the requirements, and the signal is improved.
  • the signal matching caused by the attenuation and the splash screen phenomenon make the display effect more in line with the user's needs;
  • the first signal and the second comparator can be compared and filtered twice by the first comparator and the second comparator, so that the adjusted signal attenuation is minimized, the signal matching poorness due to signal attenuation and the splash screen phenomenon are improved, and the user is matched. Maximize the display based on the demand;
  • the adjustment period of the signal can be controlled by the reset circuit to further improve the automation of the adjustment.
  • first signal, the second signal, and the adjusted signal may be video signals, and embodiments of the present disclosure do not limit this.
  • At least some embodiments of the present disclosure also provide a signal conditioning method.
  • the schematic diagram of the process of this method is shown in Figure 5, including:
  • the first sampling point is a sampling point at the output end of the driving circuit, which can be represented by TP4; the obtained first signal Vtp4_od is a signal output by the driving circuit.
  • the fifth signal adjustment is performed on the first signal
  • the five gear circuits 300 are respectively referred to as a first pre-emphasis gear, a pre-emphasis, and a swing (Swing) gear.
  • the first swing gear position, the second pre-emphasis gear position and the second swing gear position may be selected for gear adjustment.
  • the preset condition includes the following two situations: 1) the difference between the gear position signal and the preset reference signal Vref is greater than the first preset threshold; 2) the difference between the gear position signal and the preset reference signal Vref It is greater than the first preset threshold, and the difference from the acquired second signal Vtp3_od is less than a second preset threshold or minimum.
  • the preset condition is the first situation
  • determining a primary difference between each gear position signal and a preset reference signal Vref determining whether the determined primary difference value is greater than a first preset threshold, if , then execute S4.
  • a corresponding feedback signal is generated according to the primary difference value greater than the first preset threshold value and output to the switch controller 500.
  • the corresponding secondary feedback signal is generated as a feedback signal according to the minimum secondary difference, or according to not being greater than the second preset threshold.
  • the second difference value generates a corresponding secondary feedback signal, and the secondary feedback signal is used as a feedback signal.
  • the switch circuit 600 corresponding to the feedback signal is turned on, and the gear position signal corresponding to the feedback signal can be output by the switch circuit 600.
  • the signal adjustment provided by the embodiments of the present disclosure can be used to adjust and output the signal for at least one cycle, and the adjustment process of each cycle includes the above steps S1-S5, thereby improving the continuity and automation degree of signal adjustment.
  • the embodiment of the present disclosure further includes: generating a reset signal upon receiving an adjustment instruction for the adjustment and output period of the signal, and resetting the adjusted signal, so that the signal adjustment device returns to the initial state, Prepare for the next cycle of regulation and output. For example, after the first signal Vtp4_od is adjusted for one cycle and the adjusted signal Vod_out is output, the adjusted signal Vod_out is reset by the reset circuit 800; or, when the gear signal satisfying the preset condition cannot be output, The reset circuit 800 resets the adjusted signal Vod_out.
  • a test apparatus 2000 in accordance with at least some embodiments of the present disclosure includes:
  • Signal conditioning device 2300 wherein signal conditioning device 2300 is configured to obtain a first signal from drive circuit 2200 and output the adjusted signal to display screen 2100.
  • the signal conditioning device 2300 can be a signal conditioning device according to any of the above embodiments.
  • the first signal is sampled from a signal output port of the driver circuit 2200 and the second signal is sampled from a signal input port of the display 2100.
  • each block of the block diagrams and/or block diagrams and/or flow diagrams and combinations of blocks in the block diagrams and/or block diagrams and/or flow diagrams can be implemented by computer program instructions. .
  • these computer program instructions can be implemented by a general purpose computer, a professional computer, or a processor of other programmable data processing methods, such that the processor is executed by a computer or other programmable data processing method.
  • the disclosed block diagrams and/or block diagrams and/or schemes of the flow diagrams or blocks are specified in a plurality of blocks.

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Abstract

一种信号调节装置(1000)及调节方法、测试设备(2000)。该装置包括：档位控制器(1100)，档位电路(1200)，比较电路(1300)，选择电路(1400)；其中，所述档位电路(1200)与所述选择电路(1400)电连接；所述档位控制器(1100)配置为对第一信号进行档位调节，以生成档位信号，以及通过所述档位电路(1200)输出生成的所述档位信号；所述比较电路(1300)配置为判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号并输出至所述选择电路(1400)；所述选择电路(1400)配置为将所述反馈信号对应的档位信号作为调节后的信号进行输出。该信号调节装置(1000)及调节方法、测试设备(2000)可降低信号在传输过程中的衰减。

Description

信号调节装置及调节方法、测试设备
相关申请的交叉引用
本申请要求于2018年4月12日递交的第201810327287.7号中国专利申请的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本公开的实施例涉及一种信号调节装置及调节方法、测试设备。
背景技术
在显示设备中，驱动电路和显示屏之间通过视频信号接口来传输视频信号，常用的如嵌入式视频信号接口EDP(Embedded DisplayPort)。驱动电路输出的视频信号与显示屏接收的视频信号之间的匹配性，对显示效果至关重要。若驱动电路输出的视频信号与显示屏接收的视频信号匹配性较差，以使得衰减超过一定的阈值时，会出现闪屏的不良现象，影响产品质量。
发明内容
本公开至少一些实施例提供了一种信号调节装置，其包括：档位控制器，档位电路，比较电路，选择电路；其中，
所述档位电路与所述选择电路电连接；
所述档位控制器，通过所述档位电路与所述比较电路电连接，配置为对第一信号进行档位调节，以生成档位信号，以及通过所述档位电路输出生成的所述档位信号；
所述比较电路，与所述选择电路电连接，配置为判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号并输出至所述选择电路；
所述选择电路，配置为将所述反馈信号对应的档位信号作为调节后的信号进行输出。
例如，根据本公开至少一个实施例的信号调节装置还包括：第一取样电路，其中，所述第一取样电路与所述档位控制器电连接，并配置为获取并输出所述第一信号。
例如，在根据本公开至少一个实施例的信号调节装置中，
所述选择电路包括：开关控制器和开关电路；
所述档位电路与所述开关电路电连接；
所述比较电路，与所述开关控制器电连接，配置为将所述反馈信号输出至所述开关控制器；
所述开关控制器，与所述开关电路电连接，配置为导通所述反馈信号对应的开关电路，以将所述反馈信号对应的档位信号作为调节后的信号进行输出。
例如，在根据本公开至少一个实施例的信号调节装置中，
所述信号调节装置包括五个档位电路，所述五个档位电路均设置于所述档位控制器中；
所述选择电路包括五个开关电路，所述五个开关电路均设置于所述开关控制器中。
例如，在根据本公开至少一个实施例的信号调节装置中，所述比较电路包括第一比较器，所述第一比较器与所述档位电路和所述开关控制器都电连接，并配置为：确定出所述档位信号与预设的基准信号的初级差值，判断出所述初级差值大于第一预设阈值，以及响应于判断出所述初级差值大于所述第一预设阈值，生成对应的反馈信号并输出。
例如，在根据本公开至少一个实施例的信号调节装置，
所述比较电路包括：第一比较器和第二比较器；
所述第一比较器与所述档位电路电连接；所述第一比较器与所述第二比较器电连接；所述第二比较器还与所述开关控制器电连接；
所述第一比较器，配置为确定出所述档位信号与预设的基准信号的初级差值，判断出所述初级差值大于第一预设阈值，以及响应于判断出所述初级差值大于所述第一预设阈值，将所述初级差值对应的所述档位信号作为初级反馈信号输出；
所述第二比较器，配置为确定出第二信号与所述初级反馈信号的二级差 值，根据所述二级差值生成对应的反馈信号并输出至所述开关控制器。
例如，在根据本公开至少一个实施例的信号调节装置中，所述第二比较器还配置为：确定出所述二级差值小于或等于第二预设阈值，以及响应于确定出所述二级差值小于或等于所述第二预设阈值，生成与所述二级差值对应的二级反馈信号作为所述反馈信号。
例如，在根据本公开至少一个实施例的信号调节装置中，所述第二比较器还配置为：确定出所述二级差值中的最小值，根据所述二级差值中的所述最小值生成对应的二级反馈信号作为所述反馈信号。
例如，在根据本公开至少一个实施例的信号调节装置中，所述第一比较器与所述档位电路中的至少两个电连接。
例如，根据本公开至少一个实施例的信号调节装置还包括：第二取样电路，其中，所述第二取样电路配置为获取并输出所述第二信号，并且所述第二取样电路与所述第二比较器电连接。
例如，根据本公开至少一个实施例的信号调节装置还包括：
复位电路，与所述档位控制器电连接，所述复位电路配置为在接收到针对所述调节后的信号的调节和输出周期的调整指令时，生成复位信号对所述调节后的信号进行复位。
例如，在根据本公开至少一个实施例的信号调节装置中，所述第一信号和所述第二信号均为视频信号。
本公开至少一些实施例提供了一种信号调节方法，其包括：
对获取的第一信号进行档位调节，生成档位信号；
判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号；
将所述反馈信号对应的档位信号，作为调节后的信号进行输出。
例如，在根据本公开至少一个实施例的信号调节方法中，所述判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号，包括：
确定出所述档位信号与预设的基准信号的初级差值，判断出所述初级差值大于第一预设阈值，以及响应于判断出所述初级差值大于所述第一预设阈值，生成对应的反馈信号。
例如，在根据本公开至少一个实施例的信号调节方法中，所述判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号，包括：
确定出所述档位信号与预设的基准信号的初级差值，判断出所述初级差值大于第一预设阈值，以及响应于判断出所述初级差值大于所述第一预设阈值，将所述初级差值对应的档位信号作为初级反馈信号；
确定出所述初级反馈信号与获取的第二信号的二级差值，根据所述二级差值生成对应的反馈信号。
例如，在根据本公开至少一个实施例的信号调节方法中，所述根据所述二级差值生成对应的反馈信号，包括：
确定出所述二级差值小于或等于第二预设阈值，以及响应于确定出所述二级差值小于或等于所述第二预设阈值，生成与所述二级差值对应的二级反馈信号作为所述反馈信号。
例如，在根据本公开至少一个实施例的信号调节方法中，所述根据所述二级差值生成对应的反馈信号，包括：
确定出所述二级差值中的最小值，根据所述二级差值中的所述最小值生成对应的二级反馈信号作为所述反馈信号。
例如，根据本公开至少一个实施例的信号调节方法还包括：
在接收到针对所述调节后的信号的调节和输出周期的调整指令时，生成复位信号对所述调节后的信号进行复位。
例如，在根据本公开至少一个实施例的信号调节方法中，所述第一信号和所述第二信号均为视频信号。
本公开至少一些实施例还提供了一种测试设备，其包括：
显示屏；
驱动电路，配置为驱动所述显示屏；以及
任一上述的信号调节装置，
其中，所述信号调节装置配置为从所述驱动电路获得所述第一信号，以及向所述显示屏输出所述调节后的信号。
例如，在根据本公开至少一个实施例的测试设备中，所述第一信号是从所述驱动电路的信号输出端口采样得到的。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为本公开的至少一些实施例提供的一种信号调节装置的示意性框图；
图2为本公开的至少一些实施例提供的一种信号调节装置的结构示意图；
图3为图2所示信号调节装置的一个示例的结构示意图；
图4为图2所示信号调节装置的另一个示例的结构示意图；
图5为本公开的至少一些实施例提供的信号调节方法的流程示意图；
图6为本公开的至少一些实施例提供的测试设备的示意性框图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
驱动电路的视频信号传输至显示屏时，视频信号往往存在不同程度的衰减，当衰减超过一定的阈值时，会导致信号匹配性差，进而导致出现闪屏情 况。
本公开至少一些实施例提供了一种信号调节装置，可用于降低信号在传输过程中的衰减。如图1所示，根据本公开至少一些实施例的信号调节装置1000可包括：档位控制器1100，档位电路1200，比较电路1300，选择电路1400；其中，
所述档位电路1200与所述选择电路1400电连接；
所述档位控制器1100，通过所述档位电路1200与所述比较电路1300电连接，用于第一信号进行档位调节，以生成档位信号，以及通过所述档位电路1200输出生成的所述档位信号；
所述比较电路1300，与所述选择电路1400电连接，用于判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号并输出至所述选择电路1400；
所述选择电路1400，用于将所述反馈信号对应的档位信号作为调节后的信号进行输出。
应理解，根据本公开至少一些实施例的信号调节装置可用于对各种信号(包括但不限于视频信号)进行调节，本公开的实施例对此不作限制。
图2为本公开的至少一些实施例提供的一种信号调节装置的结构示意图。如图2所示，该装置包括：第一取样电路100，档位控制器200，至少一个档位电路300，比较电路400，开关控制器500和至少一个开关电路600。
第一取样电路100与档位控制器200电连接；档位控制器200与至少一个档位电路300电连接；至少一个档位电路300与比较电路400连接，并分别与至少一个开关电路600电连接；比较电路400与开关控制器500电连接；开关控制器500与至少一个开关电路600电连接。
应理解，在一些实施例中，信号调节装置可不包括第一取样电路100，而由其他电路向信号调节装置提供第一信号，本公开的实施例对此不作限制。
本公开实施例提供的信号调节装置的工作原理如下：
第一取样电路100获取第一取样点的第一信号Vtp4_od，并将该第一信号Vtp4_od输出至档位控制器200，第一取样点为驱动电路的EDP接口，可用TP4来表示；
档位控制器200对该第一信号Vtp4_od进行至少一次档位调节，生成对 应的至少一个档位信号，并将该至少一个档位信号通过至少一个档位电路300输出至比较电路400；
比较电路400判断档位控制器200生成的各档位信号是否满足预设条件，若满足预设条件，则生成对应的反馈信号并输出至开关控制器500；
开关控制器500导通该反馈信号对应的开关电路600，将该反馈信号对应的档位信号，作为调节后的信号Vod_out进行输出。开关控制器500和开关电路600为上述的选择电路的一个示例，然而应理解，本公开的实施例对此不作限制。
应用本公开实施例，通过档位控制器200和档位电路300可实现对第一信号Vtp4_od的档位调节，减少第一信号的衰减；并通过比较电路400筛选出符合要求的信号Vod_out。
本公开实施例对档位电路300和开关电路600的设置方式不作限定，档位电路300可独立设置或与档位控制器200一体设置，开关电路600可独立设置或与开关控制器500一体设置，用户可根据实际需求灵活设置。
在一个示例性实施例中，采用档位电路300与档位控制器200一体设置，开关电路600可与开关控制器500一体设置的方式，可提高电路的集成度，减小电路的体积，节省空间资源。
在一个示例性实施例中，至少一个档位电路300包括五个档位电路，且五个档位电路300均设置于档位控制器200中，对应地，至少一个开关电路600包括五个开关电路，且五个开关电路600均设置于开关控制器500中；示例性的，五个档位电路300分别对应第一预加重(Pre-emphasis)档位、预加重及摆动(Swing)档位、第一摆动档位、第二预加重档位和第二摆动档位。
本公开实施例通过上述五个档位对第一信号Vtp4_od进行调节，可增大第一信号Vtp4_od的信号强度和信号爬速，减少信号衰减。
本公开实施例在对信号进行至少一次档位调节的过程中，可实现自动选择和切换档位，避免手动选择和切换，提高了档位调节的效率。
参照图3，在一个示例性实施例中，上述比较电路400具体为第一比较器401，作为基准比较器，确定出每个档位信号与预设的基准信号Vref的初级差值，判断确定出的初级差值是否大于第一预设阈值，若是，则生成对应 的反馈信号并输出至开关控制器500。进一步，基准信号Vref具体可以为120mv(毫伏)。
本公开实施例中的基准信号Vref通常根据能够满足匹配性要求的行业标准而定，对应地，第一预设阈值也是依据行业标准而设定的，若初级差值大于第一预设阈值，则对应的档位信号能够满足行业标准，因此本公开实施例中的调节装置输出的信号与显示屏输出的信号的匹配性较高。
在一个示例性实施例中，参照图4，上述信号调节装置还包括第二取样电路700，上述比较电路400具体包括第一比较器401和第二比较器402；第一比较器401与至少两个档位电路300电连接；第一比较器401和第二取样电路700均与第二比较器402电连接；第二比较器402还与开关控制器500电连接。
应理解，在一些实施例中，信号调节装置可不包括第二取样电路700，而由其他电路向信号调节装置提供第二信号，本公开的实施例对此不作限制。
第二取样电路700、第一比较器401以及第二比较器402的工作原理如下：
第二取样电路700获取第二取样点显示屏信号接收端的第二信号Vtp3_od，并将该第二信号Vtp3_od输出至第二比较器402；第二取样点为显示屏的EDP接口，可由TP3表示；
第一比较器401确定出每个档位信号与预设的基准信号Vref的初级差值，判断确定出的初级差值是否大于第一预设阈值，若是，则将该初级差值对应的档位信号作为初级反馈信号，并将该初级反馈信号输出至第二比较器402；
以及，第二比较器402确定出第二取样电路700获取并输出的第二信号Vtp3_od与每个初级反馈信号的二级差值，根据该二级差值生成对应的反馈信号并输出至开关控制器500。
示例性地，在其中一种实施方式中，第二比较器402确定出第二信号Vtp3_od与每个初级反馈信号的二级差值，并确定出其中最小的二级差值，根据该最小的二级差值生成对应的二级反馈信号，并将该二级反馈信号作为最终的反馈信号输出至开关控制器500。
在该实施方式中，第二比较器402通过其比较功能可确定出相对于第二 信号Vtp3_od衰减最小的初级反馈信号，进一步地，可使得调节后的第一信号Vtp4_od相对于第二信号Vtp3_od衰减最小，对应地，驱动电路和显示屏的信号匹配性达到最佳，减少由信号衰减导致的闪屏现象。
示例性地，在另一种实施方式中，第二比较器402还可用于：确定出第二信号Vtp3_od与每个初级反馈信号的二级差值，判断确定出的二级差值是否大于第二预设阈值，第二预设阈值可由用户根据实际需求设定；若二级差值不大于第二预设阈值，则根据该二级差值生成对应的二级反馈信号，并将该二级反馈信号作为反馈信号输出至开关控制器500。
在该实施例中，第二比较器402通过其比较功能可确定出符合用户需求的初级反馈信号，进一步地，可使得调节后的第一信号Vtp4_od相对于第二信号Vtp3_od的衰减符合用户的实际需求；此外，第二预设阈值可由用户根据实际需求设定，增加信号调节的灵活性，使信号调节和最终的显示效果更加符合用户的需求。
在一个示例性实施例中，本公开实施例提供的调节装置还包括复位电路800，复位电路800与档位控制器200电连接，用于接收针对信号的调节和输出周期的调整指令，根据该调整指令生成复位信号对调节后的信号进行复位，使信号调节装置回到初始状态，以便能够为下一周期的调节和输出做好准备。例如，在对第一信号Vtp4_od进行了一个周期的调节并输出调节后的信号Vod_out后，生成用于调节调节和输出周期的调整指令并传输至复位电路800，从而通过复位电路800复位调节后的信号Vod_out；或，在无法输出满足预设条件的档位信号时，生成用于调节调节和输出周期的调整指令并传输至复位电路800，从而通过复位电路800对档位控制器200进行复位，开始新一周期的调节。
下面以图3所示电路原理图为例，对一种示例性的调节装置的工作原理作进一步说明：
第一取样电路100获取的第一信号Vtp4_od并输出至档位控制器200，档位控制器200控制档位电路300(如图3中序号①至⑤所属的电路)依次对Vtp4_od进行调节，得到档位信号①至⑤并输出至第一比较器401；
第一比较器401将档位信号①至⑤与预设的基准信号Vref(如120mv)进行比较，确定档位信号和Vref的差值，经比较，档位信号④与Vref的差 值大于第一预设阈值，因此输出与该差值对应的反馈信号至开关控制器500；
开关控制器500根据该反馈信号，导通序号④所属的档位电路300，将档位电路300对应的档位信号④作为Vod_out输出，完成整个信号调节的过程，复位电路800接收到调整指令后复位档位控制器200以开始下一周期的工作。
下面以图4所示电路原理图为例，对另一种示例性的调节装置的工作原理作进一步说明：
第一取样电路100获取的第一信号Vtp4_od并输出至档位控制器200，档位控制器200控制档位电路300(如图4中序号①至⑤所属的电路)依次对Vtp4_od进行调节，得到档位信号①至⑤并输出至第一比较器401；
第一比较器401将档位信号①至⑤与预设的基准信号Vref(如120mv)进行比较，确定档位信号和Vref的初级差值，经比较，档位信号②和④与Vref的初级差值均大于第一预设阈值，因此输出与两个初级差值对应的档位信号②和④至第二比较器402；
第二比较器402将第二取样电路700获取的第二信号Vtp3_od与档位信号②和④进行比较，确定出两个档位信号与Vtp3_od的二级差值，并对两个二级差值进行比较，经比较，档位信号④对应的二级差值最小，因此根据该二级差值生成对应的反馈信号输出至开关控制器500；
开关控制器500导通序号④所属的档位电路300，将该档位电路300对应的档位信号④作为Vod_out输出，完成整个信号调节的过程，复位电路800接收到调整指令后复位档位控制器200以开始下一周期的工作。
根据本公开至少一些实施例的信号调节装置至少具有如下有益效果：
1)通过档位电路和档位控制器，可对显示屏接收的第一信号进行调节，通过比较电路可对第一信号进行比较和筛选，使调节后的信号的衰减符合要求，改善因信号衰减导致的信号匹配性差以及闪屏现象，使显示效果更符合用户需求；
2)通过第一比较器和第二比较器可对第一信号进行两次比较和筛选，从而使调节后的信号衰减最小，改善因信号衰减导致的信号匹配性差以及闪屏现象，在符合用户需求的基础上最大程度地优化显示效果；
3)基于主动调节的思想，可实现对第一信号的主动调节、自动调节，无 需手动操作，大大提高了信号调节的效率；
4)可通过复位电路来控制信号的调节周期，进一步提高调节的自动化。
应理解，上述的第一信号、第二信号和调节后的信号均可以是视频信号，本公开的实施例对此不作限制。
本公开的至少一些实施例还提供了一种信号调节方法。该方法的流程示意图如图5所示，包括：
S1，获取第一取样点的第一信号。
第一取样点为驱动电路输出端的一个取样点，可用TP4来表示；所获取的第一信号Vtp4_od为驱动电路输出的信号。
S2，对该第一信号进行至少一次档位调节，生成对应的至少一个档位信号。
在一个示例性实施例中，对第一信号进行五次档位调节，涉及得五个档位电路300分别为第一预加重(Pre-emphasis)档位、预加重及摆动(Swing)档位、第一摆动档位、第二预加重档位和第二摆动档位。视用户需求而定，也可以在所设置的五个档位电路300中选择任意一个档位电路300进行档位调节。
S3，判断各档位信号是否满足预设条件，若是，则执行S4；否则停止信号输出，结束整个信号调节过程。
示例性地，预设条件包括以下两种情形：1)档位信号与预设的基准信号Vref的差值大于第一预设阈值；2)档位信号与预设的基准信号Vref的差值大于第一预设阈值，且与获取的第二信号Vtp3_od的差值小于第二预设阈值或最小。
示例性地，当预设条件为第一种情形时，确定出每个档位信号与预设的基准信号Vref的初级差值，判断确定出的初级差值是否大于第一预设阈值，若是，则执行S4。
示例性地，当预设条件为第二种情形时，
确定出每个档位信号与预设的基准信号Vref的初级差值，判断确定出的初级差值是否大于第一预设阈值，若是，则将该初级差值对应的档位信号作为初级反馈信号；
确定出第二信号Vtp3_od与每个初级反馈信号的二级差值，判断确定出 的二级差值是否大于第二预设阈值，若二级差值不大于第二预设阈值，则执行S4。
S4，生成对应的反馈信号。
示例性地，当S3中的预设条件为第一种情形时，本步骤中，根据大于第一预设阈值的初级差值，生成对应的反馈信号并输出至开关控制器500。
示例性地，当S3中的预设条件为第二种情形时，本步骤中，根据最小的二级差值生成对应的二级反馈信号作为反馈信号，或者，根据不大于第二预设阈值的二级差值生成对应的二级反馈信号，并将该二级反馈信号作为反馈信号。
S5，将反馈信号对应的档位信号，作为调节后的信号进行输出。
具体地，针对S4中生成的对应的反馈信号，本步骤中，导通该反馈信号对应的开关电路600，反馈信号对应的档位信号可由开关电路600输出。
示例性地，本公开实施例提供的信号调节可用于对信号进行至少一个周期的调节和输出，每一周期的调节过程均包括上述步骤S1-S5，从而提高信号调节的连续性和自动化程度。
在一个示例性实施例中，本公开实施例还包括：在接收到针对信号的调节和输出周期的调整指令时生成复位信号，对调节后的信号进行复位，从而信号调节装置回到初始状态，为下一周期调节和输出做好准备。例如，在对第一信号Vtp4_od进行了一个周期的调节并输出调节后的信号Vod_out后，通过复位电路800复位调节后的信号Vod_out；或，在无法输出满足预设条件的档位信号时，通过复位电路800复位调节后的信号Vod_out。
根据本公开至少一些实施例的信号调节方法的描述中未提到的内容可参考上述关于信号调节装置的描述。根据本公开至少一些实施例的信号调节方法能够达到的有益效果与根据本公开至少一些实施例的信号调节装置相同，在此不再赘述。
本公开至少一些实施例还提供了一种测试设备。如图6所示，根据本公开至少一些实施例的测试设备2000包括：
显示屏2100；
驱动电路2200，用于驱动显示屏2100；以及
信号调节装置2300，其中信号调节装置2300配置为从驱动电路2200获 得第一信号，以及向显示屏2100输出调节后的信号。信号调节装置2300可以是根据上述任一实施例的信号调节装置。
在一些实施例中，第一信号是从驱动电路2200的信号输出端口采样得到的，以及第二信号是从显示屏2100的信号输入端口采样得到的。
本技术领域技术人员可以理解，可以用计算机程序指令来实现这些结构图和/或框图和/或流图中的每个框以及这些结构图和/或框图和/或流图中的框的组合。本技术领域技术人员可以理解，可以将这些计算机程序指令提供给通用计算机、专业计算机或其他可编程数据处理方法的处理器来实现，从而通过计算机或其他可编程数据处理方法的处理器来执行本公开公开的结构图和/或框图和/或流图的框或多个框中指定的方案。
本技术领域技术人员可以理解，本公开中已经讨论过的各种操作、方法、流程中的步骤、措施、方案可以被交替、更改、组合或删除。进一步地，具有本公开中已经讨论过的各种操作、方法、流程中的其他步骤、措施、方案也可以被交替、更改、重排、分解、组合或删除。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。

Claims (21)

  1. 一种信号调节装置，包括：档位控制器，档位电路，比较电路，选择电路；其中，
    所述档位电路与所述选择电路电连接；
    所述档位控制器，通过所述档位电路与所述比较电路电连接，用于对第一信号进行档位调节，以生成档位信号，以及通过所述档位电路输出生成的所述档位信号；
    所述比较电路，与所述选择电路电连接，配置为判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号并输出至所述选择电路；
    所述选择电路，配置为将所述反馈信号对应的档位信号作为调节后的信号进行输出。
  2. 根据权利要求1所述的装置，还包括：第一取样电路，其中，所述第一取样电路与所述档位控制器电连接，并配置为获取并输出所述第一信号。
  3. 根据权利要求1或2所述的装置，其中，
    所述选择电路包括：开关控制器和开关电路；
    所述档位电路与所述开关电路电连接；
    所述比较电路，与所述开关控制器电连接，配置为将所述反馈信号输出至所述开关控制器；
    所述开关控制器，与所述开关电路电连接，配置为导通所述反馈信号对应的开关电路，以将所述反馈信号对应的档位信号作为所述调节后的信号进行输出。
  4. 根据权利要求3所述的装置，其中，
    所述信号调节装置包括五个档位电路，所述五个档位电路均设置于所述档位控制器中；
    所述选择电路包括五个开关电路，所述五个开关电路均设置于所述开关控制器中。
  5. 根据权利要求3所述的装置，其中，所述比较电路包括第一比较器，所述第一比较器与所述档位电路和所述开关控制器都电连接，并配置为：确定出所述档位信号与预设的基准信号的初级差值，判断出所述初级差值大于 第一预设阈值，以及响应于判断出所述初级差值大于所述第一预设阈值，生成对应的反馈信号并输出。
  6. 根据权利要求3所述的装置，其中，
    所述比较电路包括：第一比较器和第二比较器；
    所述第一比较器与所述档位电路电连接；所述第一比较器与所述第二比较器电连接；所述第二比较器还与所述开关控制器电连接；
    所述第一比较器，配置为确定出所述档位信号与预设的基准信号的初级差值，判断出所述初级差值大于第一预设阈值，以及响应于判断出所述初级差值大于所述第一预设阈值，将所述初级差值对应的所述档位信号作为初级反馈信号输出；
    所述第二比较器，配置为确定出第二信号与所述初级反馈信号的二级差值，根据所述二级差值生成对应的反馈信号并输出至所述开关控制器。
  7. 根据权利要求6所述的装置，其中，所述第二比较器还配置为：确定出所述二级差值小于或等于第二预设阈值，以及响应于确定出所述二级差值小于或等于所述第二预设阈值，生成与所述二级差值对应的二级反馈信号作为所述反馈信号。
  8. 根据权利要求6所述的装置，其中，所述第二比较器还配置为：确定出所述二级差值中的最小值，根据所述二级差值中的所述最小值生成对应的二级反馈信号作为所述反馈信号。
  9. 根据权利要求6-8中任一项所述的装置，其中，所述第一比较器与所述档位电路中的至少两个电连接。
  10. 根据权利要求6-9中任一项所述的装置，还包括：第二取样电路，其中，所述第二取样电路配置为获取并输出所述第二信号，并且所述第二取样电路与所述第二比较器电连接。
  11. 根据权利要求1-10中任一项所述的装置，还包括：
    复位电路，与所述档位控制器电连接，所述复位电路配置为在接收到针对所述调节后的信号的调节和输出周期的调整指令时，生成复位信号对所述调节后的信号进行复位。
  12. 根据权利要求6-10中任一项所述的装置，其中，所述第一信号和所述第二信号均为视频信号。
  13. 一种信号调节方法，包括：
    对获取的第一信号进行档位调节，生成档位信号；
    判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号；
    将所述反馈信号对应的档位信号，作为调节后的信号进行输出。
  14. 根据权利要求13所述的方法，其中，所述判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号，包括：
    确定出所述档位信号与预设的基准信号的初级差值，判断出所述初级差值大于第一预设阈值，以及响应于判断出所述初级差值大于所述第一预设阈值，生成对应的反馈信号。
  15. 根据权利要求13所述的方法，其中，所述判断出所述档位信号满足预设条件，以及响应于判断出所述档位信号满足所述预设条件，生成对应的反馈信号，包括：
    确定出所述档位信号与预设的基准信号的初级差值，判断出所述初级差值大于第一预设阈值，以及响应于判断出所述初级差值大于所述第一预设阈值，将所述初级差值对应的档位信号作为初级反馈信号；
    确定出所述初级反馈信号与获取的第二信号的二级差值，根据所述二级差值生成对应的反馈信号。
  16. 根据权利要求15所述的方法，其中，所述根据所述二级差值生成对应的反馈信号，包括：
    确定出所述二级差值小于或等于第二预设阈值，以及响应于确定出所述二级差值小于或等于所述第二预设阈值，生成与所述二级差值对应的二级反馈信号作为所述反馈信号。
  17. 根据权利要求15所述的方法，其中，所述根据所述二级差值生成对应的反馈信号，包括：
    确定出所述二级差值中的最小值，根据所述二级差值中的所述最小值生成对应的二级反馈信号作为所述反馈信号。
  18. 根据权利要求13-17中任一项所述的方法，还包括：
    在接收到针对所述调节后的信号的调节和输出周期的调整指令时，生成 复位信号对所述调节后的信号进行复位。
  19. 根据权利要求15-17中任一项所述的方法，其中，所述第一信号和所述第二信号均为视频信号。
  20. 一种测试设备，包括：
    显示屏；
    驱动电路，配置为驱动所述显示屏；以及
    如权利要求1-12中任一项所述的信号调节装置，
    其中，所述信号调节装置配置为从所述驱动电路获得所述第一信号，以及向所述显示屏输出所述调节后的信号。
  21. 根据权利要求20所述的测试设备，其中，所述第一信号是从所述驱动电路的信号输出端口采样得到的。
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