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:
Nov. 10, 2009
Filed:
Mar. 20, 2006
Hiroyasu Honda, Chino, JP;
Hiroyasu Honda, Chino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A data transfer control device including: a link controller which analyzes a packet received through a serial bus and generates a packet to be transmitted through the serial bus; an interface circuit which performs interface processing between the data transfer control device and a display driver connected to the data transfer control device through an interface bus; and a signal detection circuit which detects a vertical synchronization signal VCIN used for indicating a non-display period of a display panel and outputs a detection signal VDET. When the link controller has received a read request packet which requests reading of status of the VCIN, the link controller waits for the VDET to be output, and performs processing of transmitting a response packet through the serial bus on condition that the VDET has been output.