Matsushita Electric Industrial Co., Ltd.

Katsuji Uro

Takaharu Hosoda

Yukio Shimamura

Masaji Ueno

Mikio Fujiwara

Takahiro Mitsui

The video signal processor of the present invention comprises a CCD for storing an inputted image by converting it into an electric charge through photoelectrical conversion to be stored by each field and then outputting the stored electric charge by each field; a shutter pulse generator for supplying a shutter pulse which adjusts storage time of the electric charge in the CCD; and a variable controller for variably controlling adjusting amount of electric charge storage time by the shutter pulse by a field unit.

Video signal processor

When a time code signal corresponding to an image signal, to which a format conversion changing the number of frames per second is executed, is transmitted, information indicating a frame position where image data is changed through the format conversion in the image signal is attached to the time code signal to be transmitted. Alternatively, information indicating a synchronous state between frame conversion cycles in the format conversion and time code progression is attached to the time code signal. In the foregoing manner, a relationship between the frame position and the time code can be accurately grasped. Further, a secondary conversion (inverse conversion) is accurately executed to the image signal by means of the time code signal.

Video signal format secondary-conversion method, time code signal transmission method, and time code transmitting apparatus

The present invention comprises the step of reading a check-receiving data included in a transmitted time code signal and using the read check-receiving data to generate a transmitting side checking data, and the step of attaching the transmitting side checking data to the transmitted time code signal, as a pre-processing step at the time of transmitting the time code signal. The present invention comprises the step of reading the check-receiving data from the received time code signal and using the read check-receiving data to generate a receiving side checking data, and the step of reading the transmitting side checking data from the received time code signal and comparing the read transmitting side checking data to the receiving side checking data, thereby verifying whether or not an error is generated in the received time code signal. In this way, an error can be detected in the time code signal, as a post-processing step after the time code signal is received.

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Neyagawa, Japan

Katsuji Uro