Patent ID: 8111706
Filing Date: 2012-02-07
Classification: G06F,H04L,H04Q,Y02D

Abstract:
1. A premises gateway device that is connected to plural pieces of premises network equipment and transmits or receives data between the premises network equipment and a network of outdoor, comprising: a processing unit that encrypts data received from the premises network equipment and transfers the data to the network, decrypts encrypted data received from the network and transfers the data to the premises network equipment consistent with destination and, operates according to an input clock; a frequency determination table in which predetermined control quantities for a clock frequency are stored for the plural pieces of premises network equipment; a clock frequency control unit that references the frequency determination table to obtain a clock frequency; and a clock production unit that produces a clock having the clock frequency obtained by the clock frequency control unit, and outputs the clock to the processing unit, wherein: when the clock frequency control unit detects a signal that signifies initiation of communication and is sent from the premises network equipment, or a signal that signifies initiation of communication and is sent to the premises network equipment, the clock frequency control unit references the frequency determination table to acquire a control quantity for the clock frequency associated with the premises network equipment and, increases the clock frequency by the control quantity for the clock frequency which is acquired; and when the clock frequency control unit detects termination of communication with the premises network equipment, the clock frequency control unit decreases the clock frequency by the control quantity for the clock frequency.