公开(公告)号：US12177595B2

公开(公告)日：2024-12-24

申请号：US18226794

申请日：2023-07-27

Applicant: MEDIATEK INC.

Inventor： Chun-Ming Chou ,  Shaoyong Duan ,  Kuo-Ho Tsai ,  Chung-Yu Lin

IPC: H04N5/06 ,  H04N5/05

Abstract: A video device, a wireless audio device and a method for performing audio and video (AV) synchronization between the video device and the wireless audio device are provided. The method includes: utilizing a controller of the video device to determine a video delay of the video device; utilizing the controller to determine an audio delay of the video device; utilizing the controller to receive information of a communications quality of the wireless audio device from the wireless audio device, to determine a wireless communications delay between the video device and the wireless audio device according to the communications quality; utilizing the controller to generate a time map information according to the video delay, the audio delay and the wireless communications delay; and transmitting the time map information from the video device to the wireless audio device for AV synchronization between the video device and the wireless audio device.

公开(公告)号：US12253960B2

公开(公告)日：2025-03-18

申请号：US17225185

申请日：2021-04-08

Applicant: MEDIATEK Inc.

Inventor： Yu-Tien Chang ,  Lin-Ming Hsu ,  Chun-Ming Chou

IPC: G06F12/00 ,  G06F12/14 ,  G06F21/10 ,  G06F21/74

Abstract: The invention provides method and system for improving efficiency of protecting multi-content process. The system may cooperate with a memory, and may comprise one or more hardware IPs (intellectual properties) for content processing, one of the one or more IPs may be associated with multiple access identities. The memory may comprise multiple different ranges, each range may register an access of one of the multiple access identities as a permissible access. The method may comprise: selecting one of the access identities for processing a first content, and using the selected access identity when said IP accesses the memory during processing of the first content; selecting a different one of the access identities for processing a second content, and using the selected different access identity when said IP accesses the memory during processing of the second content.

公开(公告)号：US20240201874A1

公开(公告)日：2024-06-20

申请号：US18540739

申请日：2023-12-14

Applicant: MEDIATEK INC.

Inventor： Yu-Tien Chang ,  Lin-Ming Hsu ,  Chun-Ming Chou

IPC: G06F3/06

CPC classification number: G06F3/0622 ,  G06F3/0655 ,  G06F3/0673

Abstract: A system on chip includes a dynamic random access memory (DRAM) controller, a secure range (SR) permission checker, a plurality of intellectual property (IP) cores. The DRAM controller includes a SR table configured to store a start address, an end address, and enabled registers of each SR and an access identification (AID) permission table configured to store access permissions of SRs of each AID. The SR permission checker is embedded in the DRAM controller or a bus and linked to the SR table and the AID permission table, and configured to check the access permissions of the SRs according to the AID permission table. The plurality of IP cores linked to the DRAM controller, and comprising a translation lookaside buffer (TLB) comprising an input-output memory management unit (IOMMU) table or an input-output memory protection unit (IOMPU) table to store SR information.

公开(公告)号：US20240040065A1

公开(公告)日：2024-02-01

申请号：US18226794

申请日：2023-07-27

Applicant: MEDIATEK INC.

Inventor： Chun-Ming Chou ,  Shaoyong Duan ,  Kuo-Ho Tsai ,  Chung-Yu Lin

IPC: H04N5/06 ,  H04N5/05

CPC classification number: H04N5/06 ,  H04N5/05

Abstract: A video device, a wireless audio device and a method for performing audio and video (AV) synchronization between the video device and the wireless audio device are provided. The method includes: utilizing a controller of the video device to determine a video delay of the video device; utilizing the controller to determine an audio delay of the video device; utilizing the controller to receive information of a communications quality of the wireless audio device from the wireless audio device, to determine a wireless communications delay between the video device and the wireless audio device according to the communications quality; utilizing the controller to generate a time map information according to the video delay, the audio delay and the wireless communications delay; and transmitting the time map information from the video device to the wireless audio device for AV synchronization between the video device and the wireless audio device.