公开(公告)号：US5881056A

公开(公告)日：1999-03-09

申请号：US700257

申请日：1996-08-20

Applicant: Howard C. Huang ,  Chih-Lin I ,  Andrzej Partyka ,  Stephan ten Brink ,  Charles Albert Webb, III

Inventor： Howard C. Huang ,  Chih-Lin I ,  Andrzej Partyka ,  Stephan ten Brink ,  Charles Albert Webb, III

IPC: H04B1/707 ,  H04B1/709 ,  H04B1/7115 ,  H04J11/00 ,  H04J13/00 ,  H04B7/216 ,  H04J13/04

CPC classification number: H04B1/709 ,  H04B1/707 ,  H04B1/7115 ,  H04J13/0077 ,  H04B2201/70714

Abstract: A Multi-Code (MC) Code Division Multiple Access (CDMA) receiver receives N (where N>1) encoded signal channels over multiple air signal paths. The MC-CDMA receiver receives and demodulates the N encoded signal channels into N signal samples and includes a common circuit for time-sharing an accumulator, for accumulating the N signal samples, among a plurality of second correlators. Each of the plurality of second correlator means utilizes the time-shared accumulator to accumulate samples from each of the N signals which are then decoded into an associated one of the N signal channels.

Abstract translation: 多码（MC）码分多址（CDMA）接收机通过多个空中信号路径接收N（其中N≥1）个编码信号信道。 MC-CDMA接收机将N个编码信号信道接收并解调为N个信号样本，并且包括用于在多个第二相关器之间累积N个信号采样的累加器的时分共享电路。 多个第二相关器装置中的每一个利用时间共享累加器来累积来自N个信号中的每一个的样本，然后将其解码为N个信号信道中的一个相关联的信号。

公开(公告)号：US5442625A

公开(公告)日：1995-08-15

申请号：US242471

申请日：1994-05-13

Applicant: Richard D. Gitlin ,  Chih-Lin I

Inventor： Richard D. Gitlin ,  Chih-Lin I

IPC: H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/18 ,  H04J99/00 ,  H04L1/00 ,  H04L1/08

CPC classification number: H04L1/0041 ,  H04B7/264 ,  H04J13/0048 ,  H04J13/107 ,  H04J13/18 ,  H04L1/0022 ,  H04L1/08 ,  H04B2201/70705 ,  H04L1/0059 ,  H04L1/0071 ,  H04W52/26

Abstract: A multi-code code division multiple access system allows a user at a radio transmitter unit to dynamically change its source data bit rate. In response to a user input selecting one of the plurality of source bit rates, an adjustable coding circuit in the transmitter spreads and transmits the user's digital bit stream received at the selected bit rate to a channel bit rate which at least equals the highest bit rate of the plurality of source bit rates. The plurality of source bit rates includes a basic bit rate R and at least one bit rate which is a multiple M of the basic bit rate R, where M is an integer of at least 1. The user's input selects a particular user source bit rate by identifying a basic bit rate multiple M to a base station that is to receive the transmission.

Abstract translation: 多码分码多址系统允许无线电发射机单元的用户动态地改变其源数据比特率。 响应于选择多个源比特率之一的用户输入，发射机中的可调节编码电路将以所选比特率接收的用户数字比特流扩展并发送至至少等于最高比特率的信道比特率 的多个源比特率。 多个源比特率包括基本比特率R和至少一个比特率，其是基本比特率R的多M，其中M是至少为1的整数。用户的输入选择特定用户源比特率 通过向要接收传输的基站识别基本位速率M M。

公开(公告)号：US5007067A

公开(公告)日：1991-04-09

申请号：US414874

申请日：1989-09-29

Applicant: Ender Ayanoglu ,  Richard D. Gitlin ,  Chih-Lin I ,  James E. Mazo

Inventor： Ender Ayanoglu ,  Richard D. Gitlin ,  Chih-Lin I ,  James E. Mazo

IPC: H04L1/22 ,  H04L1/02 ,  H04L25/49

CPC classification number: H04L1/02 ,  H04L25/4908

Abstract: This invention is a technique for the substantially instantaneous self-healing of digital communications networks. Digital data streams from each of N nearby sources are combined and encoded to produce N+M coded data streams using a coding algorithm. The N+M coded data streams are then each transmitted over a separate long haul communications link to a decoder where any N of the N+M coded data streams can be decoded uniquely to produce the original N data streams. The orginal N data streams are then distributed to their respective separate end destinations. If any M or less of the N+M long haul communications links fails, i.e. as in a telephone line that gets cut or a long distance switch that fails, no rerouting of traffic need be done. Rather, the receiver detects loss of carrier on the failed link(s), and immediately supplies the missing data by decoding the data from the at least N remaining links. The technique overcomes a long felt problem of trying to reroute traffic by using sophisticated resource allocation techniques when a communications link fails.

公开(公告)号：US5671218A

公开(公告)日：1997-09-23

申请号：US234757

申请日：1994-04-28

Applicant: Chih-Lin I ,  Krishan Kumar Sabnani

Inventor： Chih-Lin I ,  Krishan Kumar Sabnani

IPC: H04B7/005 ,  H04B7/26 ,  H04J15/00 ,  H04W52/26 ,  H04W52/28 ,  H04B7/216 ,  H04J13/02

CPC classification number: H04W52/265 ,  H04W52/267 ,  H04W52/288

Abstract: The invention relates to the use of CDMA techniques. Data signals to be transmitted from a plurality of wireless devices are spread across a common bandwidth. The data signals are received by a base station as a composite spread signal. The base station partially despreads the composite spread signal with unique codes to extract data signals from individual wireless devices. The data rate and quality of service requirements for each wireless device are used to calculate a power factor and a control signal is sent to control the power from a particular wireless device. In addition, a probability of transmission value is calculated based on an equivalent current load value and an equivalent population value. The probability of transmission value determines whether a particular wireless device is allowed access to an uplink frequency channel.

Abstract translation: 本发明涉及CDMA技术的应用。 要从多个无线设备发送的数据信号在公共带宽上扩展。 数据信号由基站作为复合扩展信号接收。 基站用独特的代码部分地解扩复合扩展信号，以从各个无线设备提取数据信号。 使用每个无线设备的数据速率和服务质量要求来计算功率因数，并且发送控制信号以控制来自特定无线设备的功率。 此外，基于等效电流负载值和等效总体值计算发送价值的概率。 传输值的概率确定特定的无线设备是否允许访问上行链路频道。

公开(公告)号：US5577168A

公开(公告)日：1996-11-19

申请号：US377291

申请日：1995-01-23

Applicant: Zygmunt Haas ,  Chih-Lin I

Inventor： Zygmunt Haas ,  Chih-Lin I

IPC: H04L12/56 ,  H04W36/08 ,  H04Q7/22

CPC classification number: H04W36/0055 ,  H04W72/0406 ,  Y02B60/50

Abstract: A packetized cellular system in which a mobile quasi-periodically transmits a beacon signal containing an ID number to a first base station in the cell in which it is located for storage with the ID's of other active mobiles in the cell. A copy of a list of the active mobiles in that cell is transmitted to all adjacent cells where they are placed on non-active list. Control of a mobile is handed-off to a second base station upon the receipt of a transmitted ID number of the mobile at the second base station. The mobile is then listed as active in the database of the second base station and non-active in the first base station.

Abstract translation: 一种分组化的蜂窝系统，其中移动设备准周期性地将包含ID号码的信标信号发送到其所在的小区中的第一基站，以与该小区中的其他主动移动台的ID一起存储。 在该单元中的活动移动台的列表的副本被发送到所有相邻的单元，它们被放置在非活动列表上。 在第二基站接收到所发送的移动台的ID号码时，将移动台的控制切换到第二基站。 移动台然后在第二基站的数据库中被列为活动的，并且在第一基站中是非活动的。

公开(公告)号：US5276730A

公开(公告)日：1994-01-04

申请号：US876554

申请日：1992-04-30

Applicant: Leonard J. Cimini, Jr. ,  Gerard J. Foschini ,  Chih-Lin I

Inventor： Leonard J. Cimini, Jr. ,  Gerard J. Foschini ,  Chih-Lin I

IPC: H04W16/10 ,  H04M11/00 ,  H04Q7/00

CPC classification number: H04W16/10 ,  H04W24/00 ,  H04W72/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/082

Abstract: A method of providing local autonomous control of channel allocation of a cellular telecommunications network. In one prior art method, which can be identified as the timid method, a channel is selected for use by an incoming user if it is not being used by any of the cells which surround it. Otherwise, another channel is selected according to the same rule. The channels are tested in random order and a call is blocked if all of the channels are in use. For heavy loading, because of the vagaries of the way the demand for channels occurs, this method can result in inefficient channel deployment. In another method, which can be identified as the aggressive method, a channel is selected for use by an incoming user even if that channel is currently being used in the surrounding cells. If the channel is in use, the incoming user "bumps" the current user off the channel in the timid mode. The "bumped" user is then forced to find and use another channel. With this method, an unreasonable number of reconfigurations and an unreasonable number of dropped calls can result, especially when the system is heavily loaded. This invention integrates the aggressive and timid methods to obtain the best of both: the former's improved performance and the latter's stability. Initially, the timid mode is used to look for a channel with acceptable interference. However, if the timid mode fails to obtain a channel, the call is not necessarily blocked. Instead, the mode of operation becomes more aggressive and the first channel tested that has only modest interference is taken. The "bumped" user on that channel then attempts to locate another channel. If the "bumped" user is unsuccessful, the incoming user must then retreat and is blocked.

Abstract translation: 一种提供蜂窝电信网络的信道分配的本地自主控制的方法。 在可以被识别为胆小的方法的一种现有技术方法中，如果入口用户没有被其周围的任何小区使用，则选择频道用于使用。 否则，根据相同的规则选择另一个频道。 频道按照随机顺序进行测试，如果所有频道都在使用中，通话将被阻止。 对于繁重的负荷，由于频道需求的变化，这种方式可能导致信道部署效率低下。 在可以被识别为侵略性方法的另一种方法中，选择频道以供入局用户使用，即使该频道当前正在周围小区中使用。 如果频道正在使用中，进入的用户将以当前用户的“嘀嗒”模式将“当前用户”从“通道”中消失。 然后，“碰撞”用户被迫找到并使用另一个频道。 使用这种方法，可能导致不合理的数量的重新配置和不合理的掉话数量，特别是当系统负载过重时。 本发明整合了积极和胆小的方法，以获得最佳的两者：前者的改进性能和后者的稳定性。 最初，胆小的模式用于寻找具有可接受干扰的信道。 但是，如果没有获得通道，则呼叫不一定被阻止。 相反，操作模式变得更加积极，并且仅采用适度干扰的第一通道测试。 该通道上的“碰撞”用户尝试找到另一个频道。 如果“碰撞”用户不成功，则进入的用户必须撤退并被阻止。

公开(公告)号：US08014981B2

公开(公告)日：2011-09-06

申请号：US12128729

申请日：2008-05-29

Applicant: Peter Wing Chau Chan ,  Derek Chun Kit Lee ,  Roger Shu Kwan Cheng ,  Chih-Lin I

Inventor： Peter Wing Chau Chan ,  Derek Chun Kit Lee ,  Roger Shu Kwan Cheng ,  Chih-Lin I

IPC: G06F7/60 ,  G06F17/50

CPC classification number: H04L25/0242 ,  H04L25/0256

Abstract: A method of modeling wireless communication channels in angular domain is disclosed. The method includes considering radiation patterns 101, 102 of the transmitter antenna and the receiver antenna, wherein the radiation patterns are represented by antenna characteristics sampled at a plurality of angular directions. A method of channel estimation based on the method of modeling wireless communication channel in angular domain is also disclosed.

Abstract translation: 公开了一种在角域中建模无线通信信道的方法。 该方法包括考虑发射机天线和接收机天线的辐射图案101,102，其中辐射图案由在多个角度方向上采样的天线特性表示。 还公开了一种基于角域中无线通信信道建模方法的信道估计方法。

公开(公告)号：US20100012643A1

公开(公告)日：2010-01-21

申请号：US12176055

申请日：2008-07-18

Applicant: Geng Li ,  Joey C Y Chow ,  Chih Lin I ,  Edward S. Yang

Inventor： Geng Li ,  Joey C Y Chow ,  Chih Lin I ,  Edward S. Yang

IPC: A21B1/52

CPC classification number: A47J39/02 ,  H05B3/14 ,  H05B2214/04

Abstract: Embodiments involve a food warmer that uses a nano thickness heating material as the heating element. The heating element has a fast response and is energy efficient. The temperature of the food warmer can be precisely controlled. The food warmer may be used to heat cold food to a desired temperature, maintain a temperature of already heated food, and/or cook uncooked food.

Abstract translation: 实施例涉及使用纳米厚度加热材料作为加热元件的食品加热器。 加热元件具有快速响应并且是高能效的。 食品加热器的温度可以精确控制。 食物加热器可以用于将冷食品加热到所需温度，保持已经加热的食物的温度和/或烹饪未煮过的食物。

公开(公告)号：US20090299715A1

公开(公告)日：2009-12-03

申请号：US12128729

申请日：2008-05-29

Applicant: Peter Wing Chan ,  Derek Chun Lee ,  Roger Shu Cheng ,  Chih-Lin I

Inventor： Peter Wing Chan ,  Derek Chun Lee ,  Roger Shu Cheng ,  Chih-Lin I

IPC: G06G7/48

CPC classification number: H04L25/0242 ,  H04L25/0256

Abstract: A method of modeling wireless communication channels in angular domain is disclosed. The method includes considering radiation patterns 101, 102 of the transmitter antenna and the receiver antenna, wherein the radiation patterns are represented by antenna characteristics sampled at a plurality of angular directions. A method of channel estimation based on the method of modeling wireless communication channel in angular domain is also disclosed.

Abstract translation: 公开了一种在角域中建模无线通信信道的方法。 该方法包括考虑发射机天线和接收机天线的辐射图案101,102，其中辐射图案由在多个角度方向上采样的天线特性表示。 还公开了一种基于角域中无线通信信道建模方法的信道估计方法。

公开(公告)号：US06580913B1

公开(公告)日：2003-06-17

申请号：US09690135

申请日：2000-10-16

Applicant: Pi-Hui Chao ,  Chih-Lin I

Inventor： Pi-Hui Chao ,  Chih-Lin I

IPC: H04Q730

CPC classification number: H04W16/10 ,  H04W16/12 ,  H04W28/16 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/0453 ,  H04W72/082 ,  H04W88/08 ,  H04W92/20

Abstract: The present invention concerns the efficient use of the radio spectrum in wireless communications. Channel occupancy data and channel availability data concerning a specific base station and its neighbors are used to assign frequency channels to mobile units and/or base stations. The channel occupancy and availability data may be located at a base station or at a mobile switching center. Channels are preferably assigned as channel pairs.

Abstract translation: 本发明涉及无线电频谱在无线通信中的有效使用。 使用关于特定基站及其邻居的信道占用数据和信道可用性数据来向移动单元和/或基站分配频率信道。 信道占用和可用性数据可以位于基站或移动交换中心。 信道优选地被分配为信道对。