Patents Assigned to Realtek Semiconductor Corp.
  • Publication number: 20240153154
    Abstract: A coordinate generation system, a coordinate generation method, a computer readable recording medium with stored program, and a non-transitory computer program product are provided. The coordinate generation system includes processing units and a neural network module. The processing units are configured to obtain four vertex coordinates of an image. The vertex coordinates include first components and second components. The processing unit is configured to perform the following steps: obtaining first vector based on the first components of the four vertex coordinates and repeatedly concatenating the first vector so as to obtain a first input; obtaining second vector based on the second components of the four vertex coordinates and repeatedly concatenating the second vector so as to obtain a second input; and obtaining first output coordinate components and second output coordinate components of output coordinates based on the first input, the second input, and parameters of the neural network module.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 9, 2024
    Applicant: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yu-Hsuan Hung, Chun-Fu Liao, Kai-Ting Shr
  • Patent number: 11977867
    Abstract: A code checking method includes: causing a compiler to generate a map file and a low-level code file(s) according to a high-level code file(s); obtaining target function information from the map file; finding a target code file from the low-level code file(s); obtaining a first return command of a target function name of the target function information from the target code file; traversing the low-level code file(s) to obtain each calling module name and a second return command of each calling function name; obtaining a second storage area of each calling module name from the map file; and generating a check failure result when calling of a target function name by each calling function name is not complied with a bank-switching compile form according to a first storage area of the target function information, the first return command, each second storage area, and each second return command.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: May 7, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yong-Bo Cai, Jun-Chen Zhang, Ming-Rui Li
  • Publication number: 20240146287
    Abstract: A frequency mixing circuit includes: a first transistor and a second transistor. The first transistor has a control terminal, a first terminal and a second terminal. The control terminal of the first transistor is configured to receive an oscillation signal, the first terminal of the first transistor is configured to output a mixed signal, and the second terminal of the first transistor is configured to receive a source signal. The second transistor has a control terminal, a first terminal and a second terminal. The control terminal of the second transistor is coupled to the second terminal of the first transistor, the first terminal of the second transistor is coupled to the first terminal of the first transistor, and the second terminal of the second transistor is coupled to the control terminal of the first transistor.
    Type: Application
    Filed: September 6, 2023
    Publication date: May 2, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Yi-Ching Wu, Chia-Jun Chang
  • Publication number: 20240144426
    Abstract: A super resolution (SR) image generation circuit includes an image scale-up circuit, a stable SR processing circuit, a generative adversarial network (GAN) processing circuit, and a configurable basic block pool circuit. The image scale-up circuit is arranged to receive and process an input image to generate a scaled-up image. The stable SR processing circuit is arranged to receive a feature map of the input image to generate a stable delta value. The GAN processing circuit is arranged to receive the feature map to generate a GAN delta value. The configurable basic block pool circuit is arranged to dynamically configure a plurality of basic blocks according to a depth requirement of the input image, to generate a configuration result. The SR image generation circuit generates an SR image according to the scaled-up image, the stable delta value, and the GAN delta value.
    Type: Application
    Filed: April 20, 2023
    Publication date: May 2, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Shang-Yen Lin, Yi-Ting Bao, HAO-RAN WANG, Chia-Wei Yu
  • Publication number: 20240144428
    Abstract: An image processing circuit includes a receiving circuit, a transmitting circuit, a first asynchronous handshake circuit, a super resolution scale-up model and a second asynchronous handshake circuit. The receiving circuit is arranged to receive an input image with a first pixel clock frequency. The first asynchronous handshake circuit is arranged to receive the input image from the receiving circuit according to a receiving timing. The super resolution scale-up model is arranged to scale up the input image to generate an output image with a second pixel clock frequency. The second asynchronous handshake circuit is arranged to output the output image to the transmitting circuit according to a transmitting timing to transmit the output image, wherein the first asynchronous handshake circuit, the super resolution scale-up model, and the second asynchronous handshake circuit operate at a clock frequency independent of the first pixel clock frequency and the second pixel clock frequency.
    Type: Application
    Filed: June 28, 2023
    Publication date: May 2, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Tien-Hung Lin, Chia-Wei Yu, Yi-Ting Bao
  • Patent number: 11972141
    Abstract: A method for data transmission and a data-processing circuit are provided. The data-processing circuit includes a memory that implements a buffer and a controller for controlling an operation of the data-processing circuit. When the data-processing circuit receives input data, data-hot-bits are used to address multiple data blocks of the input data. After analyzing the data-hot-bits, a starting address and a data length of each of the data blocks can be obtained. The input data is written to the buffer according to information analyzed from the data-hot-bits, and the data-hot-bits achieve an effect of masking the dummy data address. Further, data dependency among the data blocks can be confirmed by comparing the data-hot-bits with respect to each of the data blocks before the data blocks are written to the buffer.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: April 30, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yun-Teng Cheng, Hua-Juan Zhang
  • Patent number: 11972720
    Abstract: A method for matching parameters applied to a display device and a circuit system that performs the method are provided. In the method, when a display device is activated, a circuit system connects to a panel module of the display device for retrieving parameters from a panel memory. The parameters are such as video display parameters, camera image parameters, speaker audio parameters, and microphone receiving parameters. After the parameters are applied to the circuit system, the circuit system operates the display device using the parameters. The data generated by the circuit system can be adjusted for matching new parameters. Afterwards, when the new parameters are applied to the circuit system, video and audio are outputted according to the matched parameters, and the camera and microphone in the panel module are also operated according to the matched parameters.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: April 30, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yueh-Hsing Huang, Sen-Huang Tang, Wu-Chih Lin, Yen-Hsing Wu
  • Publication number: 20240137165
    Abstract: A computing device includes: a storage circuit, for storing an arbitration interframe space (AIFS) time, at least one expected value of at least one backoff time, a preamble time, a short interframe space (SIFS) time and an acknowledgement (ACK) time; a first computing circuit, for computing a payload time according to a packet length and a packet rate; a second computing circuit, coupled to the storage circuit and the first computing circuit, for computing at least one packet transmission time according to the AIFS time, the at least one expected value of the at least one backoff time, the preamble time, the SIFS time, the ACK time and the payload time; and a third computing circuit, coupled to the second computing circuit, for computing a total packet transmission time according to the at least one packet transmission time and an estimated packet error rate.
    Type: Application
    Filed: September 26, 2023
    Publication date: April 25, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Chien-Hsun Liao, Wei-Hsuan Chang
  • Publication number: 20240137061
    Abstract: A radio frequency receiving circuit includes a first amplification circuit, an oscillation circuit, a frequency mixing and amplification circuit and a dividing circuit. The first amplification circuit is configured to amplify an input signal so as to generate an amplified input signal. The oscillation circuit is configured to provide a local oscillation signal. The frequency mixing and amplification circuit is configured to mix and amplify the amplified input signal according to the local oscillation signal. The dividing circuit is configured to form a dividing loop at a preset frequency for the amplified input signal according to the local oscillation signal when the dividing circuit is driven. A chip including the radio frequency receiving circuit and a main circuit is also provided. The main circuit is configured to drive the dividing circuit when the second input signal is determined to include a signal of the preset frequency.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 25, 2024
    Applicant: REALTEK SEMICONDUCTOR CORP.
    Inventors: Ruo-Hsuan GAO, Chia-Yi LEE, Chia-Jun CHANG
  • Patent number: 11959956
    Abstract: A circuit check method and an electronic apparatus applicable to a to-be-tested circuit are provided. The to-be-tested circuit has one or more first nodes related to a gate voltage of one or more transistor devices and a plurality of second nodes. The circuit check method includes: setting endpoint voltages of a plurality of input interface ports of the to-be-tested circuit; obtaining a first node voltage of the first node according to a conduction path of the to-be-tested circuit and the gate voltage of the transistor device; obtaining a second node voltage of each second node according to the conduction path, the endpoint voltages, and the first node voltage; and performing circuit static check on the to-be-tested circuit by applying the first node voltage and the second node voltage.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: April 16, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yun-Jing Lin, Meng-Jung Lee, Yu-Lan Lo, Shu-Yi Kao
  • Publication number: 20240120915
    Abstract: An integrated circuit includes a power-on reset (POR) circuit, a watchdog timer, a first AND gate and a power management control circuit. The POR circuit is used to receive an input voltage to generate a POR signal and generate a clock signal. The watchdog timer is used to generate a timeout signal according to the clock signal when the POR signal has an enabling voltage, the clock signal enabling generation of timeout pulses in the timeout signal at predetermined time intervals. The first AND gate including a first input terminal for receiving the POR signal; a second input terminal for receiving the timeout signal; and an output terminal for outputting a reset signal according to the POR signal and the timeout signal. The power management control circuit is used to reset an output current in response to a reset pulse in the reset signal.
    Type: Application
    Filed: May 23, 2023
    Publication date: April 11, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventor: Te-Lun Lai
  • Publication number: 20240120910
    Abstract: An all-digital duty cycle corrector and a method for correcting a duty cycle of an output clock are provided. The all-digital duty cycle corrector includes a duty cycle adjustment circuit, an asynchronous sampler, a counter and a correction control circuit. The duty cycle adjustment circuit performs duty cycle adjustment on an input clock to generate the output clock according to a digital control code. The asynchronous sampler performs asynchronous sampling on the output clock to generate N sampling results at N time points, respectively. The counter counts a number of first logic values among the N sampling results to generate a counting result. The correction control circuit compares the counting result with a reference value to generate a comparison result, and selectively adjusts the digital control code according to the comparison result, in order to correct the duty cycle of the output clock.
    Type: Application
    Filed: August 22, 2023
    Publication date: April 11, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventor: Tse-Hung Chen
  • Publication number: 20240110976
    Abstract: An electronic device and a method for performing clock gating in the electronic device are provided. The electronic device includes at least one function circuit, a device under test (DUT) circuit and at least one gating circuit. The function circuit is configured to operate according to at least one primary clock, and the DUT circuit is configured to operate according to at least one secondary clock. In addition, the clock gating circuit is configured to control whether to enable the primary clock according to at least one primary enable signal, and control whether to enable the secondary clock according to the primary enable signal and a secondary enable signal.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 4, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Ching-Feng Huang, Yu-Cheng Lo
  • Patent number: 11949376
    Abstract: A VCO (voltage-controlled oscillator) includes: a resonant tank having a parallel connection of an inductor, a fixed capacitor, a variable capacitor, a first temperature compensating capacitor, and a second temperature compensating capacitor across a first node and a second node, and configured to establish an oscillation of a first oscillatory voltage at the first node and a second oscillatory voltage at the second node; and a regenerative network placed across the first node and the second node to provide energy to sustain the oscillation. The variable capacitor is controlled by a control voltage, the first temperature compensating capacitor is controlled by a first temperature tracking voltage of a positive temperature coefficient, and the second temperature compensating capacitor is controlled by a second temperature tracking voltage of a negative temperature coefficient.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: April 2, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: I-Chang Wu, Chia-Liang (Leon) Lin
  • Publication number: 20240104887
    Abstract: An image outputting device includes a sensing circuit for generating an image signal according to a configuration; a processing circuit, coupled to the sensing circuit, for performing an image processing on the image signal according to the configuration to generate an image processing result; and a controlling circuit, coupled to the sensing circuit and the processing circuit, for setting the configuration and entering an operating system after setting the configuration.
    Type: Application
    Filed: July 14, 2023
    Publication date: March 28, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Kang Peng, Gang Shen, Yang Lu, Dong-Yu HE
  • Patent number: 11942943
    Abstract: A method of duty cycle adjustment includes conditionally inverting an input clock into a conditionally inverted clock; and adjusting a duty cycle of the conditionally inverted clock in one direction in accordance with an integer that represents an amount of duty cycle adjustment, using an uneven clock buffer and a plurality of uneven clock multiplexers that are cascaded and incrementally activated as a value of the integer increments.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: March 26, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventor: Chia-Liang (Leon) Lin
  • Patent number: 11943608
    Abstract: A Bluetooth communication system includes: a Bluetooth host device; and a Bluetooth device set which including a first member device and a second member device. The first member device is arranged to operably generate and transmit target Bluetooth packets containing an auto-pair request to the Bluetooth host device. The second member device is arranged to operably generate a resolvable set identifier corresponding to the second member device according to a device set identification information. The Bluetooth host device is arranged to operably identify the first member device as a first privileged device according to the auto-pair request in the target Bluetooth packets, and to operably transmit a first privileged pairing notice to the first member device and to operably generate a first cypher key. The first member device further generates a second cypher key corresponding to the first cypher key after receiving the first privileged pairing notice.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: March 26, 2024
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yu Hsuan Liu, Yung Chieh Lin, Po Sheng Chiu
  • Patent number: 11942906
    Abstract: The present invention provides a transmitter including a mixer, a harmonic impedance adjustment circuit and an amplifier. The mixer is configured to mix a first baseband signal with a first oscillation signal to generate a first mixed signal to a first node, and to mix a second baseband signal with a second oscillation signal to generate a second mixed signal to a second node. The harmonic impedance adjustment circuit is coupled between the first node and the second node, and is configured to reduce harmonic components of the first mixed signal and the second mixed signal to generate an adjusted first mixed signal and an adjusted second mixed signal. The amplifier is coupled to the harmonic impedance adjustment circuit, and is configured to generate an amplified signal according to the adjusted first mixed signal and the adjusted second mixed signal.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: March 26, 2024
    Assignee: Realtek Semiconductor Corp.
    Inventors: Ting-Yao Huang, Teng-Yuan Chang, Po-Chih Wang, Ka-Un Chan
  • Patent number: 11943609
    Abstract: A Bluetooth communication system includes: a Bluetooth host device; and a Bluetooth device set which including a first member device and a second member device. The first member device generates a first resolvable set identifier corresponding to the first member device, and generates and transmits target Bluetooth packets containing the first resolvable set identifier to the Bluetooth host device. The second member device generates a resolvable set identifier corresponding to the second member device according to a device set identification information. The Bluetooth host device identifies the first member device as a first privileged device according to the position of the first resolvable set identifier, and transmits a first privileged pairing notice to the first member device and generates a first cypher key. The first member device further generates a second cypher key corresponding to the first cypher key after receiving the first privileged pairing notice.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: March 26, 2024
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yu Hsuan Liu, Yung Chieh Lin, Po Sheng Chiu
  • Publication number: 20240097896
    Abstract: A programmable secure management device and a control method for performing key forwarding between secure devices are provided. The programmable secure management device includes a key generating device, a key accepting device and a forwarding controller circuit, wherein the forwarding controller circuit is electrically coupled to the key generating device and the key accepting device. The key generating device is configured to output a source key, and the key accepting device is configured to accept a destination key, wherein the forwarding controller circuit is configured to receive a forwarding command from a host device outside the programmable secure management device, to allow the host device to request the forwarding controller circuit via the forwarding command for taking the source key as the destination key to be loaded in the key accepting device.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 21, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventor: Ya-Han Chiang