-
公开(公告)号：US11974371B2
公开(公告)日：2024-04-30
申请号：US17388748
申请日：2021-07-29
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Yu-Hsiang Wang , Che-Wei Yeh , Keko-Chun Liang , Yong-Ren Fang , Yi-Chuan Liu
Abstract: A light-emitting diode LED driver and a LED driving device including the LED driver are provided. The light-emitting diode LED driver includes a decoding circuit that receives a data signal and decodes the data signal to generate display data used to drive LEDs to emit light and display and a recovered clock signal. Further provided is an encoding circuit that encodes the decoded display data by using the recovered clock signal to generate an encoded data signal, where the data signal is encoded in a first encoding format, and the encoded data signal is encoded in a second encoding format.
-
公开(公告)号：US11521542B2
公开(公告)日：2022-12-06
申请号：US16953364
申请日：2020-11-20
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hsu-Chih Wei , Po-Hsiang Fang , Keko-Chun Liang , Che-Wei Yeh , Ju-Lin Huang
Abstract: The present disclosure provides a method for a display driver system and a display driver system. The method comprises: the control circuit transmitting a global signal and a first signal for a LED driver circuit in each stage to a first-stage LED driver circuit, wherein the global signal includes an command for indicating an operation mode of the LED driver circuit in each stage; the LED driver circuit in each stage determining the operation mode corresponding to the command according to the global signal, identifying a corresponding first signal of the LED driver circuit in the stage, and operating according to the determined operation mode and the corresponding first signal; and the LED driver circuit in each stage except for last stage transmitting the global signal to the LED driver circuit in its next stage, and in response to a completion of operation according to the determined operation mode and the corresponding first signal, transmitting the first signal for the LED driver circuit in each of sequential stages to the LED driver circuit in its next stage.
-
公开(公告)号：US11509296B2
公开(公告)日：2022-11-22
申请号：US17239671
申请日：2021-04-25
Applicant: NOVATEK Microelectronics Corp.
Inventor： Che-Wei Yeh , Keko-Chun Liang , Yu-Hsiang Wang , Yi-Chuan Liu
Abstract: A clock generator includes a pulse generator and a duty cycle correction circuit. The pulse generator is configured to receive an input clock signal and generate a pulse signal according to the input clock signal. The duty cycle correction circuit, coupled to the pulse generator, is configured to adjust a duty cycle of the pulse signal to generate an output clock signal.
-
公开(公告)号：US20220343833A1
公开(公告)日：2022-10-27
申请号：US17238179
申请日：2021-04-22
Applicant: NOVATEK Microelectronics Corp.
Inventor： Che-Wei Yeh , Keko-Chun Liang , Yu-Hsiang Wang , Yong-Ren Fang , Yi-Chuan Liu
IPC: G09G3/32
Abstract: A display control system includes a plurality of driver circuits connected in series. A driver circuit among the plurality of driver circuits includes a receiver, a duty cycle correction circuit and a transmitter. The receiver is configured to receive a first signal from a previous driver circuit among the plurality of driver circuits. The duty cycle correction circuit, coupled to the receiver, is configured to adjust a duty cycle of the first signal to generate a second signal. The transmitter, coupled to the duty cycle correction circuit, is configured to transmit the second signal to a next driver circuit among the plurality of driver circuits.
-
公开(公告)号：US20220039231A1
公开(公告)日：2022-02-03
申请号：US17388748
申请日：2021-07-29
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Che-Wei Yeh , Keko-Chun Liang , Yong-Ren Fang , Yi-Chuan Liu
Abstract: A light-emitting diode LED driver and a LED driving device including the LED driver are provided. The light-emitting diode LED driver includes a decoding circuit that receives a data signal and decodes the data signal to generate display data used to drive LEDs to emit light and display and a recovered clock signal. Further provided is an encoding circuit that encodes the decoded display data by using the recovered clock signal to generate an encoded data signal, where the data signal is encoded in a first encoding format, and the encoded data signal is encoded in a second encoding format.
-
Patent Agency Ranking
公开(公告)号：US10256967B2
公开(公告)日：2019-04-09
申请号：US15863983
申请日：2018-01-08
Applicant: Novatek Microelectronics Corp.
Inventor： Chang-Cheng Huang , Shen-Iuan Liu , Ju-Lin Huang , Tzu-Chien Tzeng , Keko-Chun Liang , Yu-Hsiang Wang , Che-Wei Yeh
Abstract: A clock and data recovery circuit with jitter tolerance enhancement is provided. The CDR circuit includes: a bang-bang phase detector, a digital filter, a digitally controlled oscillator, and an adaptive loop gain control circuit. The CDR circuit detects a loop bandwidth variation and adjusts the loop bandwidth of CDR circuit by adjusting proportional path and integral path gain factors of the digital filter of the CDR circuit. The loop gain controller uses two methods to adjust the loop gain in CDR circuit: bang-bang adjusting method and linear adjusting method.
-
公开(公告)号：US11854471B2
公开(公告)日：2023-12-26
申请号：US18075179
申请日：2022-12-05
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Hsu-Chih Wei , Po-Hsiang Fang , Keko-Chun Liang , Che-Wei Yeh , Ju-Lin Huang
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2330/023 , G09G2370/00
Abstract: The present disclosure provides a method for a display driver system and a display driver system. The method comprises: the control circuit transmitting a global signal and a first signal for a LED driver circuit in each stage to a first-stage LED driver circuit, wherein the global signal includes an command for indicating an operation mode of the LED driver circuit in each stage; the LED driver circuit in each stage determining the operation mode corresponding to the command according to the global signal, identifying a corresponding first signal of the LED driver circuit in the stage, and operating according to the determined operation mode and the corresponding first signal; and the LED driver circuit in each stage except for last stage transmitting the global signal to the LED driver circuit in its next stage, and in response to a completion of operation according to the determined operation mode and the corresponding first signal, transmitting the first signal for the LED driver circuit in each of sequential stages to the LED driver circuit in its next stage.
-
公开(公告)号：US11482293B2
公开(公告)日：2022-10-25
申请号：US17363020
申请日：2021-06-30
Applicant: NOVATEK Microelectronics Corp.
Inventor： Che-Wei Yeh , Keko-Chun Liang , Yu-Hsiang Wang , Yong-Ren Fang , Yi-Chuan Liu , Yi-Yang Tsai , Po-Hsiang Fang
Abstract: A control system includes a plurality of driving circuits coupled in series, which includes a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a replica receiver. The first transmitter is coupled to the first receiver, and the replica receiver is coupled to an output terminal of the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver and a second transmitter. The second receiver is coupled to the first transmitter, and the second transmitter is coupled to the second receiver.
-
公开(公告)号：US20190113939A1
公开(公告)日：2019-04-18
申请号：US16052654
申请日：2018-08-02
Applicant: Novatek Microelectronics Corp.
Inventor： Yong-Ren Fang , Shen-Iuan Liu , Ju-Lin Huang , Tzu-Chien Tzeng , Keko-Chun Liang , Yu-Hsiang Wang , Che-Wei Yeh
IPC: G05F1/46 , H03K5/24 , G01R19/165
CPC classification number: G05F1/46 , G01R19/16528 , H03K5/24
Abstract: A reference voltage generator includes a detecting voltage provider, a comparator, and a core circuit. The detecting voltage provider provides a detecting voltage with a first voltage level corresponding to a voltage coefficient. The comparator compares the first voltage level of the detecting voltage with a plurality of sampled amplitudes of an input signal to respectively generate a plurality of comparison results. The core circuit is used to: collect a plurality of first comparison results associated with a current received bit of a preset value from the comparison results; take the voltage coefficient as a first boundary voltage coefficient in response to the first comparison results satisfying a first condition; take the voltage coefficient as a second boundary voltage coefficient in response to the first comparison results satisfying a second condition. The reference circuit generates a reference voltage according to the first and second boundary voltage coefficients.
-
公开(公告)号：US20220006608A1
公开(公告)日：2022-01-06
申请号：US17163527
申请日：2021-01-31
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yong-Ren Fang , Yu-Hsiang Wang , Che-Wei Yeh
IPC: H04L7/027
Abstract: A transmitter is configured to transmit a series of command signals and a series of data signals. The transmitter includes a serializer and a multiplexer. The serializer is configured to generate the series of data signals. The multiplexer, coupled to the serializer, is configured to selectively output the series of command signals or the series of data signals
-
-
-
-
-
-
-
-
-
Search Results
32
records
(took 0.019 seconds)
