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IP address acquisition method for controlling standby mode of set-top box, and set-top box and power management server performing the method

  • US 9,955,217 B2
  • Filed: 05/25/2016
  • Issued: 04/24/2018
  • Est. Priority Date: 09/24/2015
  • Status: Active Grant
First Claim
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1. A method of acquiring an Internet protocol (IP) address of a set-top box performed by a power management server, the method comprising:

  • determining whether a state of a set-top box changes from a broadcasting state in which a broadcasting service is provided to a passive standby state in which a network connection between the set-top box and a headend providing the broadcasting service is blocked;

    receiving, from the set-top box, state information associated with an IP address allocated to the set-top box for the network connection in response to the state of the set-top box changing to the passive standby state;

    reducing a power consumption of the set-top box in response to the state of the set-top box changing to the passive standby state;

    transmitting, to the set-top box, a state change command to maintain the network connection for the IP address allocated to the set-top box based on the received state information;

    transmitting, through a separate microcontroller processor of the set-top box, a state change command in response to a state maintenance time of routing information of the set-top box being exceeded; and

    broadcasting a video content to the set-top box.

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