公开(公告)号：US20090210896A1

公开(公告)日：2009-08-20

申请号：US12372100

申请日：2009-02-17

Applicant: Jae-Yeon SONG ,  Ram SUBRAMANIAM ,  Kook-Heui LEE

Inventor： Jae-Yeon SONG ,  Ram SUBRAMANIAM ,  Kook-Heui LEE

IPC: H04N7/025

CPC classification number: H04H60/72 ,  H04H20/59 ,  H04H60/91 ,  H04H2201/16

Abstract: An apparatus and method for transmitting/receiving a notification message in a Digital Video Broadcasting (DVB) system are provided, in which a terminal detects an Access Point (AP) from an Electronic Service Guide (ESG) bootstrapping session, queries the AP to request a notification message list or all or part of a notification message over a communication channel, and receives the notification message list or all or part of the notification message from the AP.

Abstract translation: 提供了一种在数字视频广播（DVB）系统中发送/接收通知消息的装置和方法，其中终端从电子业务指南（ESG）自举会话中检测接入点（AP），查询AP请求 通知消息列表或通过通信信道的全部或部分通知消息，并且从AP接收通知消息列表或全部或部分通知消息。

公开(公告)号：US4620115A

公开(公告)日：1986-10-28

申请号：US648843

申请日：1984-09-07

Applicant: Gil S. Lee ,  A. Ram Subramaniam

Inventor： Gil S. Lee ,  A. Ram Subramaniam

IPC: H03K3/0233 ,  H03K3/011 ,  H03K3/2893 ,  H03K19/018 ,  H03K17/16 ,  H03K19/086

CPC classification number: H03K3/2893 ,  H03K3/011

Abstract: A line receiver circuit having an input hysteresis characteristic which is compensated for both temperature changes and variations in supply voltage includes a receiver circuit portion, a bandgap circuit portion, a first voltage divider network, a second voltage divider network, and a feedback switching transistor. The receiver circuit portion is responsive to an input logic signal for generating an output signal. The bandgap circuit portion generates a constant reference voltage. The first and second voltage divider networks are operatively connected to the constant reference voltage. The switching transistor is responsive to the output signal for switching between the first voltage divider network generating a high threshold voltage when the input logic signal is in the low level state and the second voltage divider network generating a low threshold voltage when the input logic signal is in the high level state.

Abstract translation: 具有补偿温度变化和电源电压变化的输入滞后特性的线路接收器电路包括接收器电路部分，带隙电路部分，第一分压器网络，第二分压器网络和反馈开关晶体管。 接收器电路部分响应输入逻辑信号以产生输出信号。 带隙电路部分产生恒定的参考电压。 第一和第二分压器网络可操作地连接到恒定的参考电压。 当输入逻辑信号处于低电平状态时，开关晶体管响应于输出信号，用于在第一分压器网络产生高阈值电压之间进行切换，而当输入逻辑信号为 处于高水平状态。