Patent ID: 7027718
Filing Date: 2006-04-11
Classification: G11B,H04L,H04N

Abstract:
1. A packet recording apparatus comprising: arrival time control clock generating means for generating arrival time control clocks in synchronism with input of a time reference value added to input packets; arrival time identification reference value generating means for generating arrival time identification reference values in synchronism with the arrival time control clocks generated by said arrival time control clock generating means; synchronization determining means for determining whether the arrival time control clocks are synchronous with the input of the time reference value or not, said synchronization determining means providing a first signal when the arrival time control clocks are synchronous with the input of the time reference value and a second signal when the arrival time control clocks are asynchronous with the input of the time reference value; adding means for adding the arrival time identification reference values to the input packets; switching means for switching between a first operation and a second operation, the first operation being provided in response to the first signal from said synchronization determining means to allow operations of said arrival time control clock generating means and said adding means, the second operation being provided in response to the second signal from said synchronization determining means to inhibit the operation of said arrival time control clock generating means; and recording means for recording the packets to which the arrival time identification reference values are added by said adding means on a storage medium.