Patents Assigned to Realtek Semiconductor
  • Patent number: 12107714
    Abstract: A signal processing circuit includes an encoding circuit and a subcarrier sorting circuit. The encoding circuit is arranged to encode an input data to generate multiple codewords corresponding to a symbol. The subcarrier sorting circuit is arranged to sequentially arrange multiple subcarriers into an array, wherein a size of the array is M*N, N is a number of columns, N is equal to a number of the multiple codewords corresponding to the symbol, M is a number of rows, and M is a number of the multiple subcarriers divided by N; and the multiple subcarriers are sequentially arranged into the array starting from a row of the array, and subcarriers comprised in each column of the array are arranged to transmit one of the multiple codewords.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: October 1, 2024
    Assignee: Realtek Semiconductor Corp.
    Inventor: Zhiyong Tang
  • Patent number: 12107630
    Abstract: The present application provides an optical network method and associated apparatus. The method includes: receiving uplink burst time assignment information; and enabling or disabling a laser module of a local end according to the uplink burst time assignment information.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: October 1, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Hung-Wen Lin, Mu-Jung Hsu
  • Patent number: 12105660
    Abstract: The present invention discloses a communication method having both defined and undefined bus communication mechanism used in an electronic that includes steps outlined below. A connection between an application program and the peripheral electronic equipment is established through a built-in driver. A proxy library and a proxy driver respectively corresponding to a user mode and a kernel mode are activated by the application program. A connection between a combination of the proxy library and the proxy driver and the peripheral electronic equipment are established by the application program. Defined commands defined by the built-in driver are transmitted to and received from the peripheral electronic equipment through a bus by the application program by using the built-in driver. Non-defined commands not defined by the built-in driver are transmitted to and received from the peripheral electronic equipment through the bus by the application program by using the proxy library and the proxy driver.
    Type: Grant
    Filed: May 4, 2023
    Date of Patent: October 1, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Yang Li
  • Patent number: 12107500
    Abstract: A power converter device includes a converter circuit, a detector circuitry, an energy distribution logic circuit, and a ramp generator circuit. The converter circuit is configured to switch charging paths and discharging paths of an inductor according to switching signals, in order to generate output voltages. The detector circuitry is configured to generate error signals according to the output voltages and reference voltages, and respectively compare the error signals with ramp signals, in order to generate decision signals. The energy distribution logic circuit is configured to generate the switching signals and control signals according to the plurality of decision signals. The ramp generator circuit is configured to generate the ramp signals according to the control signals, in which a starting time of each of the ramp signals is different from each other.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: October 1, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Yen-Wei Liu, Tsung-Yen Tsai, Wen-Hau Yang
  • Patent number: 12108434
    Abstract: The present disclosure discloses a dynamic transmission bandwidth allocation method having dynamic transmission bandwidth allocation mechanism used in a wireless communication apparatus is provided that includes the steps outlined below. Interference information and transmission ability information of remote wireless communication apparatuses is retrieved. A predetermined transmission bandwidth range that includes resource units is set. The remote wireless communication apparatuses are allocated in the predetermined transmission bandwidth range to generate an allocation result. Whether the allocation result satisfies resource unit allocation criteria is determined. When the allocation result does not satisfy the resource unit allocation criteria, the predetermined transmission bandwidth range is shrunk to another allocatable transmission bandwidth range to determine whether the allocation result satisfies the resource unit allocation criteria.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: October 1, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chun-Kai Tseng, Shau-Yu Cheng, Wen-Yung Lee
  • Patent number: 12107597
    Abstract: A successive approximation register analog to digital converter includes a charge injection digital to analog converter (DAC) circuit, a comparator circuit, and a control logic circuitry. The charge injection DAC circuit includes capacitors that sample input signals to generate first and second signals and charge injection circuits that selectively adjust the first or the second signals according to enable signals and decision signals. The comparator circuit compares the first and second signals to generate the decision signals. The control logic circuitry controls a circuit of the charge injection circuits to adjust the first and the second signals during an initial phase, in order to adjust a switching sequence of the circuit according to the decision signals corresponding to the initial phase, and generates the enable signals according to the decision signals and the adjusted switching sequence during a conversion phase to generate a digital output.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: October 1, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Shih-Hsiung Huang, Wei-Cian Hong, Sheng-Yen Shih
  • Patent number: 12105142
    Abstract: The present disclosure provides a method and system for creating dipole moment model. The method is applied to a tested circuit and includes: performing a near-field measurement on the tested circuit, to obtain a near-field electric field and a near-field magnetic field related to the tested circuit; performing a two-dimensional divergence calculation on the near-field electric field and the near-field magnetic field, to obtain a near-field electric divergence field and a near-field magnetic divergence field; performing a convolution calculation on the near-field electric divergence field and the near-field magnetic divergence field with a digital filter; and building a dipole moment matrix equivalent to the tested circuit according to a result of the convolution calculation.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: October 1, 2024
    Assignee: Realtek Semiconductor Corporation
    Inventors: Min-Hsu Tsai, Ruey-Beei Wu
  • Publication number: 20240323884
    Abstract: A communication device includes a wireless transceiver circuit and a processor. The wireless transceiver circuit transmits and receives wireless signals. The processor processes the wireless signals to obtain information regarding a first period configured by a serving network device in order to measure signal strength of the serving network device and obtain information regarding a second period configured by the serving network device in order to detect a neighbor network device. The processor further determines whether an event related to low communication delay is triggered. When determining that the event related to low communication delay is not triggered, the processor performs a detection operation to detect the neighbor network device according to the second period. When determining that the event related to the low communication delay is triggered, the processor performs the detection operation to detect the neighbor network device according to a third period shorter than the second period.
    Type: Application
    Filed: March 18, 2024
    Publication date: September 26, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Chia-Lung Tsai, Jui-Peng Tsai
  • Publication number: 20240319906
    Abstract: A multi-cluster system, comprising: a first cluster, comprising a first processor and a second processor; a second cluster, comprising a third processor and a fourth processor; and a storage system, comprising a first storage device comprising a first port and a second port. The first processor is coupled to the first port of the first storage device and the third processor is coupled to the second port of the first storage device, wherein the first processor and the third processor can read information stored in an identical address of the first storage device.
    Type: Application
    Filed: November 30, 2023
    Publication date: September 26, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventors: Chang-Hsien Tai, Yun-Ru Huang
  • Publication number: 20240323999
    Abstract: A multi-link transmission device includes a first transmission module, a second transmission module, an analysis module and a multi-link control module. The first transmission module transmits each packet in the first transmission module via a first link, and transmits a first transmission condition for each pack transmission for the first transmission module. The second transmission module transmits each packet in the second transmission module via a second link, and transmits a second transmission condition for each pack transmission for the second transmission module. The analysis module computes a ratio of packet consumption rates of the first transmission module and the second transmission module according to the first transmission condition and the second transmission condition. The multi-link control module dispatches a packet to the first transmission module or the second transmission module according to at least the ratio of the packet consumption rates.
    Type: Application
    Filed: December 1, 2023
    Publication date: September 26, 2024
    Applicant: Realtek Semiconductor Corp.
    Inventor: Cheng-Hsuan Wu
  • Patent number: 12100450
    Abstract: A content addressable memory (CAM) device includes first to third CAM circuits and first to second peripheral circuits. The first CAM circuit stores a first bit of a first word. The second CAM circuit is arranged adjacent to the first CAM circuit and stores a first bit of a second word. The third CAM circuit is arranged adjacent to the second CAM circuit and store a second bit of the second word. The first to the third CAM circuits are arranged in a memory row. The first peripheral circuit accesses the first bits in the first and the second words. The second peripheral circuit accesses the second bit of the second word.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: September 24, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: I-Hao Chiang
  • Patent number: 12101608
    Abstract: A Bluetooth audio broadcasting system includes: an audio broadcasting device, a first Bluetooth member device, and a second Bluetooth member device. The audio broadcasting device broadcasts BLE audio packets and transmits a predetermined volume instruction to the first Bluetooth member device and the second Bluetooth member device before broadcasting the BLE audio packets. The first Bluetooth member device parses the BLE audio packets to acquire a predetermined audio data, controls a first audio playback circuit to playback the predetermined audio data, and configures an audio volume of the first audio playback circuit in advance according to the predetermined volume instruction. The second Bluetooth member device parses the BLE audio packets to acquire the predetermined audio data, controls a second audio playback circuit to playback the predetermined audio data, and configures an audio volume of the second audio playback circuit in advance according to the predetermined volume instruction.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: September 24, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yu Hsuan Liu, Yung Chieh Lin, Qing Gu, Bi Wei, Yi-Cheng Chen
  • Patent number: 12099777
    Abstract: A Bluetooth audio system includes: an audio playback device arranged to operably generate and transmit Bluetooth audio transmission parameters; a first audio generating device arranged to operably capture sound to generate first audio packets, to operably receive the Bluetooth audio transmission parameters without conducting Bluetooth pairing with the audio playback device, and to operably broadcast the first audio packets through BIS logical transport; and a second audio generating device arranged to operably capture sound to generate second audio packets, to operably receive the Bluetooth audio transmission parameters without conducting Bluetooth pairing with the audio playback device, and to operably broadcast the second audio packets through BIS logical transport.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: September 24, 2024
    Assignee: Realtek Semiconductor Corp.
    Inventor: Yu Hsuan Liu
  • Patent number: 12101207
    Abstract: A communication apparatus and an associated method are disclosed. The communication apparatus includes differential input ports; a signal pairing circuit, arranged for coupling the differential input ports to a receiving circuit, wherein when the signal pairing circuit operates in a first mode, a positive input port and a negative input port of the differential input ports correspondingly electrically couple to a positive input terminal and a negative input terminal of the receiving circuit, when the signal pairing circuit operates in a second mode, the positive input port and the negative input port of the differential input ports correspondingly electrically couple to the negative input terminal and the positive input terminal of the receiving circuit; a processor circuit, arranged for determining whether the decoded signal includes a specific code before the timer is time out and generating a determination result; and control the signal pairing circuit according to the determination result.
    Type: Grant
    Filed: March 19, 2023
    Date of Patent: September 24, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Te Lung Fang, Chih Chieh Yen, Jen-Hao Yeh, Wei-Yi Wei
  • Patent number: 12101390
    Abstract: The present invention discloses a signal communication method having re-sampling mechanism that includes steps outlined below. Sampled data of a data signal is obtained. A time difference between an actual sampling time point and an ideal sampling time point is calculated. A closet time point closest to the ideal sampling time point within a sampling time interval is selected. Operation sampled data within a predetermined range around the target sampled data is selected from the sampled data. A group of response terms are retrieved from a pre-stored lookup table according to the closest time point to substitute the response terms and the time difference into a parameter calculation equation to generate a group of re-sampling response parameters. A calculation is performed based on the operation sampled data and the re-sampling response parameters to generate a re-sampled value of the target sampled data.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: September 24, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Chih-Hsiu Zeng, Chang-Ming Lee
  • Patent number: 12101175
    Abstract: A wireless communication method for optimizing uplink transmission from a communication partner to a wireless communication device includes the following steps: after receiving an uplink performance estimation, determining uplink adjustment information including resource unit allocation and a target received signal strength indicator according to the uplink performance estimation; generating a target channel quality indicator (CQI) according to previous uplink sounding information and the uplink adjustment information, wherein the previous uplink sounding information indicates the characteristics of the uplink transmission; determining uplink transmission setting including a modulation and coding scheme and dual carrier modulation according to the target CQI and the type of an error correction technique and transmitting a control signal to a communication partner according to the uplink transmission setting; and updating the uplink performance estimation according to a reception signal from the communication
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: September 24, 2024
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Wen-Yung Lee, Shau-Yu Cheng, Jhe-Yi Lin, Chun-Kai Tseng, Wei-Hsuan Chang
  • Patent number: 12101614
    Abstract: A Bluetooth communication system is provided, which comprises a Bluetooth host device and a Bluetooth device set. The connections between the Bluetooth host device and the Bluetooth device set complies with the specification of Bluetooth Low Energy Audio technology. The Bluetooth device set comprises at least a first member device and a second member device. The first member device and the second member device may be configured in a first mode wherein uplink audio signal transmission is allowed, and the connections are carried out by isochronous streaming channels respectively. The first member device transmits captured voice data to the Bluetooth host device, while the second member device does not. When an event is triggered, the first member device can notify the second member device through direct wireless connection, so that the first member device and the second member device can carry out subsequent voice input handover procedures.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: September 24, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Qing Gu, Bi Wei, Yu Hsuan Liu, Yi-Cheng Chen, Cheng Cai, Hung Chuan Chang
  • Publication number: 20240313872
    Abstract: A wireless communication device includes a wireless transceiver circuit, a baseband signal processing circuit, and an interference detection device. The wireless transceiver circuit receives a wireless signal from a wireless transmission channel, and converts the wireless signal into a baseband signal. The baseband signal processing circuit processes the baseband signal including a plurality of packets. The interference detection device is coupled to the baseband signal processing circuit, and performs a short-term interference detection and a long-term interference detection according to the plurality of packets, to determine whether interference exists in the wireless transmission channel and generate a detection result, wherein the short-term interference detection is an interference detection within a single packet, and the long-term interference detection is an interference detection across packets.
    Type: Application
    Filed: February 29, 2024
    Publication date: September 19, 2024
    Applicant: Realtek Semiconductor Corp
    Inventors: Wei-Chi Lai, Wei-Hsuan Chang
  • Patent number: 12095472
    Abstract: The present invention provides a transceiver circuit including a transmitter circuit, a frequency synthesizer and control circuit. The transmitter circuit is configured to generate a transmission signal, wherein the transmission signal is transmitted through an antenna. The frequency synthesizer is configured to generate a clock signal for the transmitter circuit to generate the transmission signal. The control circuit is configured to generate a first control signal to control the frequency synthesizer to determine a loop bandwidth of the frequency synthesizer; wherein when the transceiver circuit operates in a standby mode, the control circuit generates the first control signal to make the frequency synthesizer have a first loop bandwidth; and after a period of time after the transceiver circuit is switched from the standby mode to a transmission mode, the control circuit generates the first control signal to make the frequency synthesizer have a second loop bandwidth.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: September 17, 2024
    Assignee: Realtek Semiconductor Corp.
    Inventors: Wei-Cheng Lin, Ching-Her Huang, Yi-Chang Shih, Yu-Jung Li
  • Patent number: 12094090
    Abstract: A method for processing image noise in a compression process and a circuit system thereof are provided. The circuit system receives an image that is compressed in a specific compression format, and obtains pixel values after the image is decompressed. Differences of pixel values between pixels adjacent to each other can be calculated. A specific area of the image can be divided into multiple sections. A maximum pixel value and a minimum pixel value for each area are used to obtain a regional maximum difference. The regional maximum difference is used to determine whether or not to perform an image-denoising process on the areas such as a flat area or a high-frequency area. Differences among the adjacent pixels can be adjusted according to a weighted average brightness of the adjacent pixels. The image-denoising process is performed on the areas, and an image with reduced noise is finally outputted.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: September 17, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yan-Fong Chen, Wen-Tsung Huang