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1. 发明申请

US20060176835A1 System and method for providing internet protocol based broadcast services 审中-公开
标题翻译：提供基于互联网协议的广播服务的系统和方法
公开(公告)号：US20060176835A1
公开(公告)日：2006-08-10
申请号：US11340967
申请日：2006-01-26
申请人： Soon-Ho Jang , Chang-Sup Shim , Yun-Je Oh , Tae-Sung Park , Seong-Ha Kim , Se-Hong Park , Yu-Gun Kim , Dong-Il Seo , Jung-Hwan Lim , Jun-Sung An , Sung-Il Sohn , Se-Kang Park , Do-Young Joung , Su-Hyung Kim , Gil-Yong Park
发明人： Soon-Ho Jang , Chang-Sup Shim , Yun-Je Oh , Tae-Sung Park , Seong-Ha Kim , Se-Hong Park , Yu-Gun Kim , Dong-Il Seo , Jung-Hwan Lim , Jun-Sung An , Sung-Il Sohn , Se-Kang Park , Do-Young Joung , Su-Hyung Kim , Gil-Yong Park
IPC分类号： H04L12/56 , H04Q11/00 , H04L12/16 , H04L12/28
CPC分类号： H04Q11/0067 , H04H20/02 , H04H20/69 , H04H60/15 , H04H60/16 , H04L12/1836 , H04L45/16 , H04Q2011/0088
摘要： A solution for allowing conditional access to IP-based broadcast services in a passive optical network is disclosed. When a subscriber requests broadcast services by selecting a broadcast channel, an IP set-top converts the request into an IGMP join message and forwards the message to an ONU/ONT, a unit on the subscriber's side. The ONU/ONT delivers the message to an OLT interworking with a router while storing mapping information of the port that received the message and a MAC address of the selected channel. Thereafter, the OLT extracts information on MAC address of the IP set-top box and the requested broadcast data. The OLT compares the extracted information to the subscriber's subscription information and determines whether to provide the requested broadcast services. If the broadcast services may be provided, the broadcast data provided from the broadcast server is transmitted to the IP set-top box via ONU/ONT based on the stored mapping information.
摘要翻译：公开了一种允许在无源光网络中对基于IP的广播服务进行条件访问的解决方案。当用户通过选择广播信道来请求广播业务时，IP机顶盒将该请求转换成IGMP加入消息，并将该消息转发给订户侧的ONU / ONT单元。 ONU / ONT将消息传递到与路由器互通的OLT，同时存储接收到消息的端口的映射信息和所选信道的MAC地址。此后，OLT提取关于IP机顶盒的MAC地址和所请求的广播数据的信息。 OLT将提取的信息与订户的订阅信息进行比较，并确定是否提供所请求的广播服务。如果可以提供广播服务，则从广播服务器提供的广播数据基于存储的映射信息经由ONU / ONT被发送到IP机顶盒。

2. 发明授权

US06944562B2 Temperature compensation device and method with low heat-generation 有权
标题翻译：低发热温度补偿装置及方法
公开(公告)号：US06944562B2
公开(公告)日：2005-09-13
申请号：US10619787
申请日：2003-07-15
申请人： Jong-Hun Lee , Tae-Sung Park , Chan-Youl Kim , Sung-Il Sohn
发明人： Jong-Hun Lee , Tae-Sung Park , Chan-Youl Kim , Sung-Il Sohn
IPC分类号： H04B10/572 , G01K15/00 , G05B11/42 , H04B10/07 , H04B10/27 , H04B10/29 , H04B10/293 , H04B10/564 , G01K19/00 , G06F19/00
CPC分类号： G05B11/42 , G01K15/00
摘要： A temperature compensation device for an optical communication device or the like is constructed so that an error value, which is the difference between the current temperature and a reference temperature, is subjected to digital processing in a temperature comparison unit. A digital error voltage value is calculated and digital PID control is performed instead of analog PID which requires electric components such as a power op-amp, a resistor (R), and a capacitor (C). According to this construction it is possible to reduce the number of electric parts. It is also possible to accept various types of temperature sensors while using only one PCB regardless of the types of temperature sensors utilized.
摘要翻译：用于光通信装置等的温度补偿装置被构造成使得在温度比较单元中对作为当前温度和基准温度之差的误差值进行数字处理。计算出数字误差电压值，而不是需要诸如功率运算放大器，电阻器（R）和电容器（C）等电气部件的模拟PID。根据该结构，能够减少电气部件的数量。不管使用哪种类型的温度传感器，也可以只使用一个PCB来接受各种类型的温度传感器。

3. 发明授权

US07031356B2 Temperature controller in optical communication device and method for same 失效
标题翻译：光通信装置中的温度控制器及其方法
公开(公告)号：US07031356B2
公开(公告)日：2006-04-18
申请号：US10642703
申请日：2003-08-18
申请人： Tae-Sung Park , Chan-Youl Kim , Jong-Hun Lee , Sung-Il Sohn
发明人： Tae-Sung Park , Chan-Youl Kim , Jong-Hun Lee , Sung-Il Sohn
IPC分类号： H01S3/04
CPC分类号： G02B6/12026 , G02B6/4201 , G02B6/4271 , G05D23/1912
摘要： Disclosed is a temperature controller and method for maintaining an optical-communication device at a constant temperature regardless of ambient temperature variation. The temperature controller includes: a temperature sensor for detecting the current temperature of a device which is to be temperature-controlled; and, a temperature-comparison section for comparing the current temperature detected by the temperature sensor with the predetermined temperature that is a proper operating temperature for the device, wherein the temperature-comparison section further includes: a differential amplifier for outputting the difference between signals which are inputted respectively into anode and cathode terminals; and first, second, third, and fourth resistance pads which are selectively short-circuited with one another according to the temperature-sensor type so as to vary the polarity of the signals inputted into the differential amplifier so that PTC and NTC sensors can be used at the same time in a single PCB regardless of the temperature-sensor type.
摘要翻译：公开了一种用于将光通信设备保持在恒定温度而不管环境温度变化的温度控制器和方法。温度控制器包括：用于检测要被温度控制的装置的当前温度的温度传感器; 以及温度比较部，其将由所述温度传感器检测到的当前温度与所述器件的适当工作温度的规定温度进行比较，其中，所述温度比较部还包括：差分放大器，用于输出信号之间的差异分别输入阳极和阴极端子; 以及根据温度传感器类型选择性地短路的第一，第二，第三和第四电阻焊盘，以便改变输入到差分放大器中的信号的极性，使得可以使用PTC和NTC传感器同时在单个PCB中，无论温度传感器类型如何。

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