China Mobile Communications Corporation

Hisilicon Technologies Co., Ltd.

Beijing Novel-super Digital Tv Technology Co., Ltd.

Academy of Broadcasting Science, Nrta

Sumavision Technologies Co., Ltd

China Mobile Communications Group Co., Ltd.

China Mobile Communication Co.,ltd Research Institute

Jinglei Liu

Congxing Ouyang

Jianming Zhou

Han Li

Guanghai Zhang

Qiang Wang

Peng Chen

Yan Zhang

Lei Zhang

Yuhong Huang

Wei Xie

Qing Yang

Bing Wei

Zhifan Sheng

Bin Xiong

Haifeng Yan

Zhonghua Fang

Xuebing Tian

Lizheng Zheng

Longhui Jin

Jianyin Zhang

Nanxiang Shi

Provided is a method for protecting an encrypted control word. The method includes: receiving a hardware security module entitlement management message and an encrypted control word transmitted from a main chip, where the hardware security module entitlement management message includes a key for decrypting the encrypted control word; decrypting, based on the hardware security module entitlement management message and a hardware security module root key stored in the hardware security module, the encrypted control word to obtain a control word; reencrypting the control word based on a re-encryption key stored in the hardware security module to obtain a reencrypted control word; and transmitting the reencrypted control word to the main chip, so that the main chip decrypts, based on a main chip entitlement management message transmitted from the front end, the reencrypted control word to obtain the control word.

Method for protecting encrypted control word, hardware security module, main chip and terminal

The present invention relates to a message-based notifying method for notifying a waiting queue and an application server, wherein the method includes: sending, by a calling terminal, a call request to a called terminal; forwarding, by an application server, to the called terminal the call request sent from the calling terminal, and determining from a response message returned from the called terminal whether the called terminal is in an idle status; and if the called terminal is in a busy status, then adding by the application server the calling terminal into a waiting enqueuing queue of the called terminal, and sending to the calling terminal a waiting notification message containing a waiting queue value corresponding to the calling terminal; or if the called terminal is in an idle status, then establishing directly a communication connection between the calling terminal and the called terminal.

Message-based notifying method for notifying waiting queue and application server

A household gateway subsystem, the subsystem includes: a host device, for connecting an external network with the interior of the household, and controlling various information appliances in the household based on a digital bus; a user operating device, for communicating with the host device via a digital bus interface, and providing various user operating interfaces and control units. A digital household system is also provided, the system includes: a household gateway subsystem, connected with an external communicating network by IP access; the household gateway subsystem includes: a host device; a user operating device, for communicating with the host device via a digital bus interface; a number of wireless signal transceivers, connected with the host device of the household gateway subsystem.

Household gateway subsystem and digital household system based on bus

A method for allocating addresses to intelligent information appliances and their subordinate devices is provided. The network side of a household network sends down-link broadcast message, triggering intelligent information appliances newly connected to the network to return device connection information containing its MAC address to the network side. Alternatively, a newly connected information appliance sends broadcast message carrying device connection information to the network side. After the host at the network side receives the device connection information, the host allocates and stores an unused data bus address for the intelligent information appliance. The network side implements the allocation of data bus addresses to the intelligent information appliances by establishing corresponding relation between intelligent information appliances' MAC addresses and respective data bus addresses, without the need of using other higher layer protocols. The method allows simplifying the protocol stacks, turning the intelligent information appliance in the household network into an external device of the host in the household network, which is invisible to external networks, thus greatly improving safety of the household network, reducing complexity of the appliance, and reducing cost of the appliance.

Method for assigning address to the intelligent information household appliance and the sub-equipment in the household network

The present invention relates to a home gateway device. The home gateway device comprises a main processor generate information process signals and control signals, a computer bus signal Ethernet adapter unit connected to the main processor to translate the signals between computer bus signals and Ethernet signals, an Ethernet frame process unit connected to the computer bus signal Ethernet adapter unit to forward the received Ethernet frame based on a prearranged policy, an inner interface unit connected to the Ethernet frame process unit to connect interior networking devices, and an outer communication module connected to the main processor and the Ethernet frame process unit. The centralized control of the home gateway device of the present invention can decrease the requirement that the household appliances should be intellectualized, thereby achieving more flexible control and reducing the cost. The uplink and downlink Ethernet signals are controlled by using the prearranged policy to separate the Ethernet signals for Internet access from the Ethernet signals of the household information appliances, and avoid the threat due to the unsafe factors.

Home gateway device

Growing community of inventors

Beijing, China

Jinglei Liu