Patent ID: 8928743
Filing Date: 2015-01-06
Classification: G02B,G09G,H04N

Abstract:
1. A radio signal transmitter for receiving, from an image display device, (i) synchronizing signals for switching between displaying a right-eye image and displaying a left-eye image on the image display device and (ii) liquid crystal shutter control data indicating whether the right-eye or left-eye image is displayed, and for transmitting the synchronizing signals and the liquid crystal shutter control data to stereoscopic image glasses, the radio signal transmitter comprising: a period detecting circuit configured to detect a period of each of the synchronizing signals from an interval between the synchronizing signals received from the image display device; and a period data storage device in which the period detected by the period detecting section is stored as period data, the radio signal transmitter being configured such that the period data in the period data storage device is updated every time the period of each of the synchronizing signals is detected by the period device detecting circuit.