Patent ID: 7298964
Filing Date: 2007-11-20
Classification: H04N

Abstract:
1. A recording system comprising a plurality of video camera devices, wherein said plurality of video camera devices include: a parent device having a signal sending/receiving function and a control function for said recording system; and at least one child device having a signal sending/receiving function, said parent device sends synchronization data for time synchronization which includes a synchronization pattern for establishing frame synchronization, and said child device receives said synchronization data sent from said parent device and performs a shooting operation in time synchronization with said parent device in accordance with said synchronization data, wherein said parent device sends, as control information, an operation parameter for defining operation specification of said child device, and said child device receives said operation parameter sent from said parent device and performs the shooting operation with said operation specification thereof set in accordance with said operation parameter, wherein when said operation specification of said child device is to be changed, said child device sends a change demand signal corresponding to a content of change as said control information, and said parent device receives said change demand signal sent from said child device, determines whether or not the content of change corresponding to said change demand signal is permitted, and when the change is permitted, sends a change permission signal and an operation parameter for defining operation specification to be employed by said child device after the change.