The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2026
Filed:
Oct. 10, 2024
Haining Eswin Computing Technology Co., Ltd., Jiaxing, CN;
Beijing Eswin Computing Technology Co., Ltd., Beijing City, CN;
Haining ESWIN Computing Technology Co., Ltd., Jiaxing, CN;
Beijing ESWIN Computing Technology Co., Ltd., Beijing City, CN;
Abstract
The present application provides a smart card interface, a data transmission method and a television chip. A first memory of the smart card interface is used for caching multiple pieces of indicator data corresponding to a video stream for a TV chip, and the multiple pieces of indicator data are used for determining a decryption key for the video stream. The transmitter is used for transmitting the multiple pieces of indicator data to a smart card sequentially; checking the multiple pieces of indicator data transmitted to the smart card to obtain a first check result of each of the multiple pieces of indicator data, where the first check result is used for indicating whether the smart card has successfully received the corresponding indicator data; and for any indicator data, determining whether to retransmit the indicator data to the smart card based on the first check result of the indicator data. The receiver is used for receiving multiple key data packets corresponding to the decryption key transmitted from the smart card, and caching the multiple key data packets in the second memory. By solutions of the present application, the efficiency of data transmission may be improved, and the problem of playback buffering of TV programs due to data transmission errors may be reduced.