-
公开(公告)号：US20230370772A1
公开(公告)日：2023-11-16
申请号：US18359734
申请日：2023-07-26
Applicant: Realtek Semiconductor Corp.
Inventor： Yu Hsuan LIU , Yung Chieh LIN , Qing GU , Bi WEI , Yi-Cheng CHEN
CPC classification number: H04R3/00 , H04M1/6066 , G06F3/165 , H04W4/80 , H04R2420/07
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.
-
公开(公告)号：US11803366B2
公开(公告)日：2023-10-31
申请号：US17231119
申请日：2021-04-15
Applicant: REALTEK SEMICONDUCTOR CORP.
Inventor： Dong-Yu He , Meng-Yao Gu , Jian Sun
CPC classification number: G06F8/654 , G06F21/572 , H04L9/3073 , H04L9/3252 , H04L63/0435 , H04L63/0442 , H04L63/123 , G06F2221/033
Abstract: A firmware updating system and method are provided. The firmware updating method includes configuring a host to digitally sign a firmware to be updated, and configuring an electronic device to perform an authorization verification on an update tool, and only the update tool that passes the verification has an update permission. The update tool uses an encryption algorithm to encrypt the firmware to be updated that includes a digital signature. After the encryption is completed, the host sends the update tool to the electronic device through the update tool. The electronic device then uses a decryption algorithm to decrypt the received firmware to obtain the firmware to be updated including the digital signature, and write the firmware to be updated into a firmware storage area to be updated. The electronic device then verifies the digital signature in the firmware to be updated.
-
63.发明公开公开(公告)号：US20230345078A1
公开(公告)日：2023-10-26
申请号：US18135728
申请日：2023-04-17
Applicant: Realtek Semiconductor Corp.
Inventor： Chun-Yi Chen , Ching-Yao Yang
IPC: H04N21/472 , H04N19/159 , H04N7/01
CPC classification number: H04N21/47217 , H04N19/159 , H04N7/013
Abstract: A method for performing media playback on a media playback device, including: receiving a data stream to buffer the data stream in a buffer unit or to record the data stream in a storage unit; performing a parsing operation on the buffered data stream or the recorded data stream to obtain frame time and data offset corresponding to one or more intra-coded pictures of at least one audiovisual (AV) content included in the data stream, thereby to create a frame index table; in response to a playback operation, referring to the frame index table to determine a data offset associated with the playback operation; retrieving one or more data units from the buffer unit or the storage unit according to the data offset; and decoding the one or more data units for media playback.
-
公开(公告)号：US20230334629A1
公开(公告)日：2023-10-19
申请号：US18134625
申请日：2023-04-14
Applicant: REALTEK SEMICONDUCTOR CORP.
Inventor： YEN-YING CHEN , WEI-YUAN HSU , CHIA-WEI YU
CPC classification number: G06T5/005 , G06V20/70 , G06V10/764 , G06T7/11 , G06T7/55 , G06V10/761 , G06V10/82 , G06T2207/20084
Abstract: A method for labeling an image object and a circuit system are provided. In the method, an object classification method is used to segment an image into one or more regions. Each of the regions can be classified into one classification assigned with a classification label. A depth estimation method is used to estimate a depth of each pixel of the image. Whether or not the depth of the pixel matches the classification of the region to which the pixel belongs is determined. When the depth of the pixel matches the classification of the region, a post-processing process is performed on the image based on weights assigned to the regions according to the classification label of the region. Conversely, when the depth of the pixel does not match the classification of the region, the pixel is regarded as noise that does not require the post-processing process.
-
65.发明授权公开(公告)号：US11791812B2
公开(公告)日：2023-10-17
申请号：US17539456
申请日：2021-12-01
Applicant: REALTEK SEMICONDUCTOR CORP.
Inventor： Liang-Huan Lei , Shih-Hsiung Huang
CPC classification number: H03K5/24 , G05F1/575 , H03K3/0377 , H03M1/466
Abstract: A comparison control circuit is adapted to analog-to-digital converters and low-dropout regulators. The comparison control circuit includes a comparator, a Schmitt trigger, a capacitor set and a logic circuit. The comparator is configured to output a comparison signal according to a first input signal and a second input signal, wherein the comparison signal is a first high voltage potential or a first low voltage potential. The Schmitt trigger is configured to output a trigger signal according to the comparison signal and a voltage potential range, wherein the voltage potential range is in a range from the first low voltage potential to the first high voltage potential. The capacitor set is configured to adjust the second input signal when being controlled. The logic circuit is configured to control the capacitor set according to the trigger signal to correspondingly adjust the second input signal.
-
Patent Agency Ranking
公开(公告)号：US20230299803A1
公开(公告)日：2023-09-21
申请号：US18120959
申请日：2023-03-13
Applicant: Realtek Semiconductor Corp.
Inventor： Yi-Chang Shih
CPC classification number: H04B1/38 , H04B1/006 , H04B1/0071
Abstract: The present invention provides a transceiver circuit including receiver circuit, wherein the receiver circuit includes a first mixer, a second mixer, a complex filter, a switch module and an ADC. The first mixer is configured to mix an input signal with a first oscillation signal to generate a first mixed signal. The second mixer is configured to mix the input signal with a second oscillation signal to generate a second mixed signal. The complex filter is configured to generate a first intermediate frequency signal and a second intermediate frequency signal according to the first mixed signal and the second mixed signal. The switch module is configured to select one of the first intermediate frequency signal and the second intermediate frequency signal to serve as an output intermediate frequency signal. The ADC is configured to perform an analog-to-digital conversion operation on the output intermediate frequency signal to generate a digital signal.
-
公开(公告)号：US11765088B2
公开(公告)日：2023-09-19
申请号：US17573187
申请日：2022-01-11
Applicant: REALTEK SEMICONDUCTOR CORP.
Inventor： Kuo-Cheng Lu
IPC: H04L45/7453 , H04L47/2475 , H04L47/20
CPC classification number: H04L45/7453 , H04L47/20 , H04L47/2475
Abstract: A method and a system for processing a data flow with an incomplete comparison process are provided. The method is implemented by a network device that includes a flow table and a flow filter in a memory thereof. A flow analyzing module is provided for analyzing and classifying packets of an input flow, and identifying an application category to which the input flow belongs. The flow table is queried according to a result of resolving the input flow for determining whether the input flow matches any flow entry of the flow table. The flow filter is queried if the input flow fails to match any flow entry of the flow table for determining whether features of the input flow match conditions of the flow filter. The input flow is processed accordingly, without needing to copy all flows that do not match the flow entries to the flow table.
-
68.发明授权公开(公告)号：US11764815B2
公开(公告)日：2023-09-19
申请号：US17894171
申请日：2022-08-24
Applicant: Realtek Semiconductor Corp.
Inventor： Tzu-Ming Kao
CPC classification number: H04B1/0475 , H04B17/11
Abstract: A method for calibrating one or more compensation values utilized by a compensation device of a transmitter includes: obtaining a plurality of output signals which were sequentially generated by the transmitter by processing a pair of input signals according to multiple pairs of compensation values as a plurality of feedback signals, where each feedback signal corresponds to one of the multiple pairs of compensation values, determining a plurality of coefficients of a cost function according to the multiple pairs of compensation values and the feedback signals in an operation of calibration; and determining a pair of calibrated compensation values according to the coefficients and providing the pair of calibrated compensation values to the compensation device.
-
公开(公告)号：US11764793B2
公开(公告)日：2023-09-19
申请号：US17699164
申请日：2022-03-20
Applicant: Realtek Semiconductor Corp.
Inventor： Yu-Che Yang
CPC classification number: H03L7/0991 , G04F10/005 , H03L7/085 , H03L2207/50
Abstract: An all-digital phase-locked loop (ADPLL) circuit and a calibration method thereof are provided. The ADPLL circuit includes a digitally controlled oscillator (DCO) circuit, a phase detector circuit, and a calibration circuit coupled between the DCO circuit and the phase detector circuit. The DCO circuit generates a clock signal according to a frequency control signal. The phase detector circuit generates a phase error value according to a reference signal and the clock signal. More particularly, after the ADPLL circuit performs a locking operation for a period of time, the frequency control signal is tied at a locked value which is obtained when the ADPLL circuit performs the locking operation, and the calibration circuit may modify a current of at least one current source within the DCO circuit according to the phase error value.
-
70.发明公开公开(公告)号：US20230282254A1
公开(公告)日：2023-09-07
申请号：US17976891
申请日：2022-10-31
Applicant: Realtek Semiconductor Corp.
Inventor： Wei-Shu Huang , Hsieh-Han Chiang
IPC: G11C7/10
CPC classification number: G11C7/1096 , G11C7/1045 , G11C7/1063
Abstract: A method for dynamically resizing an instruction memory and a data memory in a system includes: defining, by a memory control circuit, a plurality of memory selection modes; selecting a memory selection mode from the plurality of memory selection modes, and writing the memory selection mode into a firmware control register; and redistributing, by the memory control circuit, a plurality of memory cells in the instruction memory and a plurality of memory cells in the data memory according to the memory selection mode stored in the firmware control register.
-
-
-
-
-
-
-
-
-
Search Results
3043
records
(took 0.132 seconds)
