公开(公告)号：US20090228701A1

公开(公告)日：2009-09-10

申请号：US12337367

申请日：2008-12-17

Applicant: Chih-Yin LIN

Inventor： Chih-Yin LIN

IPC: H04L9/00

CPC classification number: H04L9/083 ,  H04L9/321 ,  H04L9/3242 ,  H04L9/3297

Abstract: A logging system and method based on a one-way hash function are described. The system includes a user system, a trusted third party, and a verifier. The method includes the following steps. The user system records a log file and initializes a message authentication code key and an image code. When the verifier requests the user system for a logging unit corresponding to an operation history, the user system uses a one-way hash function to calculate a check value and returns the check value and an image code sequence. The verifier then verifies the integrity of the check value and the image code sequence through the trusted third party. The trusted third party checks if the image code sequence obtained by the hash calculation equals to the check value through the one-way hash function, so as to verify that the log file of the user system has not been modified.

Abstract translation: 描述了基于单向散列函数的记录系统和方法。 系统包括用户系统，可信第三方和验证者。 该方法包括以下步骤。 用户系统记录日志文件并初始化消息认证码密钥和图像代码。 当验证者向用户系统请求对应于操作历史的记录单元时，用户系统使用单向哈希函数来计算检查值并返回检查值和图像代码序列。 验证者然后通过可信第三方验证检查值和图像代码序列的完整性。 可靠的第三方检查通过散列计算获得的图像代码序列是否通过单向散列函数等于检查值，以便验证用户系统的日志文件是否未被修改。

公开(公告)号：US20130106978A1

公开(公告)日：2013-05-02

申请号：US13458417

申请日：2012-04-27

Applicant: Barry LAM ,  Chia-Yuan CHANG ,  Rong-Quen CHEN ,  Chi-Cheng CHANG ,  Huan-Tang WU ,  Chih-Wei SUNG ,  I-Chung CHIEN ,  Chih-Yin LIN ,  Ting-Han HUANG ,  Juin-Yi HUANG ,  Hsin-Lun HSIEH ,  Chao-Chueh CHANG ,  Kang-Wen LIN ,  Chiayi WU

Inventor： Barry LAM ,  Chia-Yuan CHANG ,  Rong-Quen CHEN ,  Chi-Cheng CHANG ,  Huan-Tang WU ,  Chih-Wei SUNG ,  I-Chung CHIEN ,  Chih-Yin LIN ,  Ting-Han HUANG ,  Juin-Yi HUANG ,  Hsin-Lun HSIEH ,  Chao-Chueh CHANG ,  Kang-Wen LIN ,  Chiayi WU

IPC: H04N7/15

CPC classification number: H04N7/147 ,  H04N7/148

Abstract: A video conference system built in an internet protocol (IP) network is provided. The system has: a multimedia capturing unit configured to photograph and output a first video signal; a DECT telephone configured to receive sounds and output a first audio signal; and a video conference terminal apparatus, including: an audio processing unit is an audio codec; a video processing unit is an video codec; and a network processing unit for transmitting a first network packet consisting of first audio/video streams generated by the audio/video processing units to the IP network, wherein the network processing unit receives a second network packet consisting of second audio/video streams from the IP network, wherein the second audio/video streams are decoded by the audio/video processing units, respectively, to generate second audio/video signals, which are displayed on the DECT telephone and a display apparatus, respectively.

Abstract translation: 提供了内置在互联网协议（IP）网络中的视频会议系统。 该系统具有：多媒体拍摄单元，被配置为拍摄和输出第一视频信号; DECT电话，被配置为接收声音并输出第一音频信号; 以及视频会议终端装置，包括：音频处理单元是音频编解码器; 视频处理单元是视频编解码器; 以及网络处理单元，用于将由所述音频/视频处理单元生成的第一音频/视频流组成的第一网络分组发送到所述IP网络，其中，所述网络处理单元从所述网络处理单元接收包括来自所述IP网络的第二音频/视频流的第二网络分组 IP网络，其中第二音频/视频流分别由音频/视频处理单元解码，以产生分别在DECT电话和显示装置上显示的第二音频/视频信号。