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17 条记录 (耗时 0.015 秒)

    Device for controlling connection of built-in type ear-microphone for portable radio terminal
    7.
    发明公开
    Device for controlling connection of built-in type ear-microphone for portable radio terminal 审中-公开
    一种用于控制内置麦克风耳塞为便携式无线终端的连接

    公开(公告)号：EP0999721A3

    公开(公告)日：2003-05-21

    申请号：EP99122154.0

    申请日：1999-11-05

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Kim, Dong-Ho ,  Hwang, Jung-Wook

    IPC分类号： H04R1/10 ,  H04M1/60

    CPC分类号： H04M1/6058 ,  H04B1/3877 ,  H04M1/05 ,  H04R1/083 ,  H04R1/10 ,  H04R1/1016 ,  H04R1/1041 ,  H04R2201/107 ,  H04R2420/05

    摘要： A device for controlling connection of a built-in type ear-microphone for a portable radio terminal includes a vocoder including a speaker amplifier and a microphone amplifier of the portable radio terminal and an ear-microphone amplifier; first logic combination means for logically combining a signal output from the speaker amplifier and a signal output from the ear-microphone amplifier so as to prevent generation of noises due to short-circuit of a microphone signal and a speaker signal while an earphone plug is inserted in an earphone jack; a comparator for comparing an electric signal sensed at the earphone jack with a reference voltage; second logic combination means for logically combining an output of the first logic combination means and an output of the comparator to generate a jack detection signal; and a central processing unit for generating a control signal for enabling the vocoder to switch an audio signal path to the ear-microphone amplifier, upon detection of the jack detection signal during a call.

    Method and apparatus for ordering retransmissions in an NxM Mimo system
    8.
    发明公开
    Method and apparatus for ordering retransmissions in an NxM Mimo system 有权
    用于在NxM Mimo系统中对重传进行排序的方法和设备

    公开(公告)号：EP1753154A3

    公开(公告)日：2007-08-01

    申请号：EP06118893.4

    申请日：2006-08-14

    申请人： Samsung Electronics Co., Ltd.

    发明人： Bar-Ness, Yeheskel Room 100 Faculty Building, ,  Lee, Ye-Hoon ,  Kim, Dong-Ho ,  Malagarriga, Guillem Ernest

    IPC分类号： H04B7/06 ,  H04L1/06

    CPC分类号： H04B7/0669 ,  H04B7/0623 ,  H04B7/0697 ,  H04B7/0848 ,  H04L1/0009 ,  H04L1/0625 ,  H04L1/0668 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1867

    摘要： A method is provided for ordering retransmissions in a Multi-Input Multi-Output (MIMO) system using NxM antennas. A transmitter splits a coded data stream into N sub-packets, and transmits the N sub-packets to a receiver via N transmission antennas. The receiver removes interferences of the N sub-packets received via M reception antennas, and independently decodes the interference-removed sub-packets. The receiver transmits an acknowledgement (ACK) or a negative acknowledgement (NACK) to the transmitter based on errors included in the decoded sub-packets. Upon receipt of the NACK, the transmitter retransmits to the receiver a sub-packet retransmission using ordering based on an Alamouti space-time coding scheme.

    摘要翻译： 提供了一种用于使用NxM个天线对多输入多输出（MIMO）系统中的重传进行排序的方法。 发射机将编码后的数据流分成N个子分组，并将N个子分组通过N个发射天线发送给接收机。 接收器去除经由M个接收天线接收的N个子分组的干扰，并且独立地解码被去除干扰的子分组。 接收器基于包括在解码的子分组中的错误向发射器发送确认（ACK）或否定确认（NACK）。 一旦接收到NACK，发射机就使用基于Alamouti时空编码方案的排序向接收机重传子分组重传。

    Low density parity check code-based hybrid automatic repeat request
    10.
    发明公开
    Low density parity check code-based hybrid automatic repeat request 有权
    Hybride automatische Wiederholungsaufforderung mit LDPC Kodierung

    公开(公告)号：EP1816777A3

    公开(公告)日：2012-11-14

    申请号：EP07002649.7

    申请日：2007-02-07

    申请人： Samsung Electronics Co., Ltd.

    发明人： Kim, Dong-Ho ,  You, Cheol-Woo ,  Kim, Yung-Soo ,  Lee, Ye-hoon

    IPC分类号： H04L1/18 ,  H04L1/00

    CPC分类号： H04L1/1819 ,  H04L1/0057 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/1816 ,  H04L1/1887

    摘要： A transmission method based on a Hybrid Automatic Repeat Request (HARQ) scheme for in a communication system. A codeword is generated using a Low Density Parity Check (LDPC) code. Parity bits of the codeword are classified on a basis of a transmission priority. Parity bits with an identical transmission priority are grouped. An information bit group of the codeword and parity bit groups with the identical transmission priority are shuffled in a predefined pattern. A packet is generated from the shuffled information bit group and the shuffled parity bit groups based on the transmission priority. The generated packet is retransmitted in response to a retransmission request. The transmission method can obtain the effect of channel interleaving by setting a transmission priority according to importance of puncturing target blocks, shuffling blocks with the same priority, and shuffling and transmitting bits configuring each block.

    摘要翻译： 一种基于用于通信系统中的混合自动重复请求（HARQ）方案的传输方法。 使用低密度奇偶校验（LDPC）码生成码字。 基于传输优先级对码字的奇偶校验位进行分类。 具有相同传输优先级的奇偶校验位被分组。 具有相同发送优先级的码字和奇偶校验比特组的信息比特组以预定义的模式进行混洗。 根据传输优先级，从混洗信息位组和混洗奇偶校验位组生成分组。 响应于重传请求重传生成的分组。 发送方法可以根据删除目标块，具有相同优先级的混洗块的重要性以及配置每个块的混洗和发送比特来设置传输优先级来获得信道交织的效果。