公开(公告)号：US20020057659A1

公开(公告)日：2002-05-16

申请号：US09789389

申请日：2001-02-21

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC: H04B007/216

CPC classification number: H04W52/08 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/7093 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/16 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/146 ,  H04W52/24 ,  H04W52/26 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

Abstract: A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units. The signals transmitted between the base station and subscriber unit use spread-spectrum modulation. The improvement apparatus for adaptive forward power control (APC) from a base station (BS) to a subscriber unit (SU), includes sending from the base station, using spread-spectrum modulation, a BS-spreading code on a forward channel. The subscriber unit despreads the BS-spreading code on the forward channel as a despread signal, determines a first power level Pd which includes power of the despread signal plus noise and a second power level PN, which includes despread-noise power. The subscriber unit determines a first error signal e1, from the first power level Pd, the second power level PN, and a required signal-to-noise ratio SNRREQ for service type, and a second error signal e2, from a measure of total received power Pr and an automatic gain control (AGC) set point Po. The subscriber unit forms a combined error signal from the first error signal e1, the second error signal e2, a first weight a1 and a second weight a2, and hard limits the combined error signal to form a single APC bit. The APC bit is transmitted to the base station. In response to the APC bit, the base station adjusts transmitter power to the subscriber unit.

Abstract translation: 一种采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元。 在基站和用户单元之间传输的信号使用扩频调制。 用于从基站（BS）到用户单元（SU）的自适应前向功率控制（APC）的改进装置包括使用扩频调制在前向信道上从基站发送BS扩展码。 用户单元将前向信道上的BS扩展码解扩展为解扩信号，确定包括解扩信号加噪声功率的第一功率电平Pd和包括解扩噪声功率的第二功率电平PN。 订户单元从服务类型的第一功率电平Pd，第二功率电平PN和所需的信噪比SNRREQ以及来自所接收总数的测量的第二误差信号e2确定第一误差信号e1 功率Pr和自动增益控制（AGC）设定点Po。 订户单元形成来自第一误差信号e1，第二误差信号e2，第一权重a1和第二权重a2的组合误差信号，并且硬限制组合误差信号以形成单个APC比特。 APC位被传送到基站。 响应于APC位，基站调整发射机功率给用户单元。

公开(公告)号：US20020049078A1

公开(公告)日：2002-04-25

申请号：US09981784

申请日：2001-10-19

Applicant: ALCATEL

Inventor： Keld Lange ,  Gero Blanke

IPC: H04M001/00

CPC classification number: H04B1/707 ,  H04B2201/70703 ,  H04B2201/7071

Abstract: A base station (10) of a radio-operated telecommunications system is described, which is provided with a receiver for processing received information (11) and with at least one digital signal processor (12) for performing a symbol rate processing (14). The signal processor (12) is suitable for and provided for likewise performing at least parts of a chip rate processing (13).

Abstract translation: 描述了一种无线电电信系统的基站（10），其具有用于处理接收信息的接收机（11）和用于执行符号速率处理（14）的至少一个数字信号处理器（12）。 信号处理器（12）适用于并提供用于同样地执行码片速率处理（13）的至少一部分。

公开(公告)号：US06377613B1

公开(公告)日：2002-04-23

申请号：US09422186

申请日：1999-10-22

Applicant: Manabu Kawabe ,  Seishi Hanaoka ,  Nobukazu Doi

Inventor： Manabu Kawabe ,  Seishi Hanaoka ,  Nobukazu Doi

IPC: H04L2730

CPC classification number: H04B1/7093 ,  H04B1/7117 ,  H04B2201/7071

Abstract: To simplify the structure of the demodulator and reduce the hardware scale in a code division multiple accessing communication apparatus. A plurality of base band received signals are multiplexed in a time division manner, so that one matched filter executes path searching or a time division multiplexing processing is executed for demodulation in a despreader. Or path searching and demodulation for a plurality of codes are executed with time division multiplexing of outputs from a plurality of code generators.

Abstract translation: 为了简化解调器的结构，并减少了码分多址通信装置中的硬件规模。 多个基带接收信号以时分方式多路复用，使得一个匹配滤波器执行路径搜索，或者在解扩器中执行时分复用处理以进行解调。 或者用于多个码的路径搜索和解调通过来自多个码发生器的输出的时分复用来执行。

公开(公告)号：US20020018518A1

公开(公告)日：2002-02-14

申请号：US09920094

申请日：2001-07-31

Inventor： Ravi Subramanian ,  Keith Rieken ,  Uma Jha ,  David M. Holmes ,  Joel D. Medlock ,  Murali Krishnan

IPC: H04K001/00

CPC classification number: H04B1/7115 ,  H04B1/7117 ,  H04B2201/7071 ,  H04L2027/0026

Abstract: A rake receiver in accordance with an exemplary embodiment of this invention is configurable by an external agent (e.g., microcontroller, DSP, or state machine) to suit the particular requirements of different spread spectrum systems. In an exemplary embodiment, the receiver includes multiple fingers. Each finger includes a plurality of generic despreaders/descramblers, a plurality of generic dechannelizers coupled to the despreaders/descramblers, and at least one timing estimation controller coupled to the despreaders/descramblers. The finger also includes at least one phase estimation controller, at least one frequency estimation controller, and at least one energy estimation controller all coupled to the generic dechannelizers.

公开(公告)号：US06307877B1

公开(公告)日：2001-10-23

申请号：US09138162

申请日：1998-08-21

Applicant: Lieven Philips ,  Jan Vanhoof ,  Maryse Wouters ,  Rik De Wulf ,  Veerle Derudder ,  Carl Van Himbeeck ,  Ivo Bolsens ,  Hugo De Man ,  Bert Gyselinckx

Inventor： Lieven Philips ,  Jan Vanhoof ,  Maryse Wouters ,  Rik De Wulf ,  Veerle Derudder ,  Carl Van Himbeeck ,  Ivo Bolsens ,  Hugo De Man ,  Bert Gyselinckx

IPC: H04B169

CPC classification number: G06F8/10 ,  G06F17/5022 ,  G06F17/5045 ,  H04B1/707 ,  H04B2201/7071

Abstract: The programmable modem for digital data of the present invention provides a highly programmable, digital modem implemented in an integrated circuit which can be customized to specific applications. The programmable modem uses spread spectrum techniques and is specifically programmable to alter the parameters of the modem to improve performance. The present invention also provides a systematic method and development kit to provide rapid customization of a modem for a particular application or for rapid specification of a high-performance application specific integrated circuit mode.

Abstract translation: 本发明的用于数字数据的可编程调制解调器提供了可以根据特定应用定制的集成电路中实现的高度可编程的数字调制解调器。 可编程调制解调器使用扩展频谱技术，具体可编程以改变调制解调器的参数以提高性能。 本发明还提供了一种用于为特定应用提供调制解调器的快速定制或用于快速指定高性能专用集成电路模式的系统方法和开发套件。

公开(公告)号：US06229843B1

公开(公告)日：2001-05-08

申请号：US09444079

申请日：1999-11-22

Applicant: Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

Inventor： Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

IPC: H04B1707

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A CDMA modem includes a modem transmitter having: a code generator which provides an associated pilot code signal and which generates a plurality of message code signals; a spreading circuit which produces a spread-spectrum message signal by combining each of the information signals with a respective one of the message code signals; and a global pilot code generator that provides a global pilot code signal to which the message code signals are synchronized. The CDMA modem also includes a modem receiver having an associated pilot code generator and a group of associated pilot code correlators for correlating code-phase delayed versions of the associated pilot signal with a receive CDM signal to produce a despread associated pilot signal. The code phase of the associated pilot signal is changed responsive to an acquisition signal value until a pilot signal is received. The associated pilot code tracking logic adjusts the associated pilot code signal in phase responsive to the acquisition signal so that the signal power level of the despread associated pilot code signal is maximized. Finally, the CDMA modem receiver includes a group of message signal acquisition circuits, each including a plurality of receive message signal correlators which correlate respective local received message code signal to the CDM signal to produce a respective despread received message signal.

Abstract translation: CDMA调制解调器包括：调制解调器发送器，具有：代码生成器，其提供相关联的导频代码信号并产生多个消息代码信号; 扩展电路，其通过将每个信息信号与相应的一个消息代码信号组合来产生扩频消息信号; 以及提供消息代码信号同步的全局导频码信号的全局导频码发生器。 CDMA调制解调器还包括具有相关联的导频码发生器和一组相关联的导频码相关器的调制解调器接收机，用于将相关导频信号的码相位延迟版本与接收CDM信号相关，以产生解扩相关导频信号。 相应的导频信号的码相位响应于采集信号值而改变，直到接收到导频信号。 相关联的导频代码跟踪逻辑响应于采集信号相位调整相关联的导频代码信号，使得解扩相关导频码信号的信号功率电平最大化。 最后，CDMA调制解调器接收机包括一组消息信号采集电路，每组包括多个接收消息信号相关器，它将相应的本地接收到的消息码信号与CDM信号相关联，以产生相应的解扩接收消息信号。

公开(公告)号：US06215778B1

公开(公告)日：2001-04-10

申请号：US08956740

申请日：1997-10-23

Applicant: Gary Lomp ,  John Kowalski ,  Fatih Ozluturk ,  Avi Silverberg ,  Robert Regis ,  Michael Luddy ,  Alexander Marra ,  Alexander Jacques

Inventor： Gary Lomp ,  John Kowalski ,  Fatih Ozluturk ,  Avi Silverberg ,  Robert Regis ,  Michael Luddy ,  Alexander Marra ,  Alexander Jacques

IPC: H04B7216

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller is coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance.

Abstract translation: 多址，扩频通信系统通过电信线处理由无线电载波台（RCS）接收的多个信息信号，以便通过射频（RF）信道作为码分复用（CDM）信号同时传输， 一组用户单位（SU）。 RCS接收对应于电信线信息信号的呼叫请求信号，以及识别用户接收呼叫的用户识别信号。 RCS包括多个码分多址（CDMA）调制解调器，其中之一提供全局导频码信号。 调制解调器提供与全局导频信号同步的消息代码信号。 每个调制解调器将信息信号与消息代码信号组合以提供CDM处理的信号。 RCS包括耦合以接收远程呼叫的系统信道控制器。 RF发射器连接到所有调制解调器，以将CDM处理的信号与全局导频码信号组合以产生CDM信号。 RF发射机还利用CDM信号调制载波信号，并通过RF通信信道将调制载波信号发送到SU。 每个SU包括也与全局导频信号同步的CDMA调制解调器。 CDMA调制解调器解扩CDM信号并向用户提供解扩信息信号。 该系统包括用于维持RCS和SU的最小系统发射功率水平的闭环功率控制系统，以及用于维持最大数量的主动SU以提高系统性能的系统容量管理。

公开(公告)号：US06212174B1

公开(公告)日：2001-04-03

申请号：US08956980

申请日：1997-10-23

Applicant: Gary Lomp ,  John Kowalski ,  Fatih Ozluturk ,  Avi Silverberg ,  Robert Regis ,  Michael Luddy ,  Alexander Marra ,  Alexander Jacques

Inventor： Gary Lomp ,  John Kowalski ,  Fatih Ozluturk ,  Avi Silverberg ,  Robert Regis ,  Michael Luddy ,  Alexander Marra ,  Alexander Jacques

IPC: H04B7216

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A multiple access, spread-spectrum communication system processes a plurality of information signals received by a Radio Carrier Station (RCS) over telecommunication lines for simultaneous transmission over a radio frequency (RF) channel as a code-division-multiplexed (CDM) signal to a group of Subscriber Units (SUs). The RCS receives a call request signal that corresponds to a telecommunication line information signal, and a user identification signal that identifies a user to receive the call. The RCS includes a plurality of Code Division Multiple Access (CDMA) modems, one of which provides a global pilot code signal. The modems provide message code signals synchronized to the global pilot signal. Each modem combines an information signal with a message code signal to provide a CDM processed signal. The RCS includes a system channel controller is coupled to receive a remote call. An RF transmitter is connected to all of the modems to combine the CDM processed signals with the global pilot code signal to generate a CDM signal. The RF transmitter also modulates a carrier signal with the CDM signal and transmits the modulated carrier signal through an RF communication channel to the SUs. Each SU includes a CDMA modem which is also synchronized to the global pilot signal. The CDMA modem despreads the CDM signal and provides a despread information signal to the user. The system includes a closed loop power control system for maintaining a minimum system transmit power level for the RCS and the SUs, and system capacity management for maintaining a maximum number of active SUs for improved system performance.

Abstract translation: 多址，扩频通信系统通过电信线处理由无线电载波台（RCS）接收的多个信息信号，以便通过射频（RF）信道作为码分复用（CDM）信号同时传输， 一组用户单位（SU）。 RCS接收对应于电信线信息信号的呼叫请求信号，以及识别用户接收呼叫的用户识别信号。 RCS包括多个码分多址（CDMA）调制解调器，其中之一提供全局导频码信号。 调制解调器提供与全局导频信号同步的消息代码信号。 每个调制解调器将信息信号与消息代码信号组合以提供CDM处理的信号。 RCS包括耦合以接收远程呼叫的系统信道控制器。 RF发射器连接到所有调制解调器，以将CDM处理的信号与全局导频码信号组合以产生CDM信号。 RF发射机还利用CDM信号调制载波信号，并通过RF通信信道将调制载波信号发送到SU。 每个SU包括也与全局导频信号同步的CDMA调制解调器。 CDMA调制解调器解扩CDM信号并向用户提供解扩信息信号。 该系统包括用于维持RCS和SU的最小系统发射功率水平的闭环功率控制系统，以及用于维持最大数量的主动SU以提高系统性能的系统容量管理。

公开(公告)号：US5930704A

公开(公告)日：1999-07-27

申请号：US657680

申请日：1996-05-31

Applicant: David L. Kay

Inventor： David L. Kay

IPC: G06F9/445 ,  G06F9/46 ,  H04B1/707 ,  H04B7/005 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04L9/32 ,  H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L12/403 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04Q11/04 ,  H04W8/20 ,  H04W8/24 ,  H04W52/00 ,  H04W52/08 ,  H04W52/52 ,  H04W84/14 ,  H04W88/02 ,  H04W92/08 ,  H04Q7/20

CPC classification number: H04W8/245 ,  G06F9/4401 ,  G06F9/546 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7085 ,  H04J3/0682 ,  H04L12/26 ,  H04L12/2818 ,  H04L12/403 ,  H04L12/66 ,  H04L29/06 ,  H04L41/0226 ,  H04L41/0233 ,  H04L41/082 ,  H04L41/22 ,  H04L43/00 ,  H04L69/14 ,  H04L9/3226 ,  H04Q11/04 ,  H04W52/52 ,  H04B1/70735 ,  H04B1/70775 ,  H04B2001/70706 ,  H04B2201/70702 ,  H04B2201/70706 ,  H04B2201/7071 ,  H04B2201/70711 ,  H04B2201/709709 ,  H04L2012/2841 ,  H04L2012/2845 ,  H04L2209/80 ,  H04L69/08 ,  H04Q2213/1305 ,  H04Q2213/13093 ,  H04Q2213/13098 ,  H04Q2213/13109 ,  H04Q2213/1319 ,  H04Q2213/13196 ,  H04Q2213/13199 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13292 ,  H04Q2213/13296 ,  H04Q2213/13298 ,  H04Q2213/13299 ,  H04Q2213/13335 ,  H04Q2213/13376 ,  H04W52/08 ,  H04W8/205 ,  H04W84/14 ,  H04W88/021 ,  H04W92/08

Abstract: A subscriber station for the wireless connection of user telecommunications equipment to a remote central station of a wireless telecommunications system includes a transmitter/receiver for wireless communication with the central station, at least one telephone line for connection to subscriber telecommunications equipment and a communications controller connected between the transmitter/receiver and the telephone line for processing signals for transmission and/or received signals The subscriber station is configurable in response to wireless programming signals representative of control code down-loaded from the central station By enabling the down-loading of software for programming the subscriber station, the flexibility and convenience of configuring the subscriber station, both initially and subsequently, is greatly enhanced

Abstract translation: 将用户电信设备无线连接到无线电信系统的远程中心站的订户站包括用于与中心站无线通信的发射机/接收机，用于连接到用户电信设备的至少一条电话线路和连接到通信控制器的通信控制器 在发射机/接收机和电话线之间用于处理用于传输和/或接收信号的信号。用户台可以响应于代表从中心站下载的控制代码的无线编程信号来配置。通过使得能够下载软件 对用户站进行编程，最初和随后的配置用户站的灵活性和便利性大大提高

公开(公告)号：US5872810A

公开(公告)日：1999-02-16

申请号：US592700

申请日：1996-01-26

Applicant: Lieven Philips ,  Jan Vanhoof ,  Maryse Wouters ,  Rik De Wulf ,  Veerle Derudder ,  Carl Van Himbeeck ,  Ivo Bolsens ,  Hugo De Man ,  Bert Gyselinckx

Inventor： Lieven Philips ,  Jan Vanhoof ,  Maryse Wouters ,  Rik De Wulf ,  Veerle Derudder ,  Carl Van Himbeeck ,  Ivo Bolsens ,  Hugo De Man ,  Bert Gyselinckx

IPC: H04B1/707 ,  H04B1/38

CPC classification number: H04B1/707 ,  H04B2201/7071

Abstract: The programmable modem for digital data of the present invention provides a highly programmable, digital modem implemented in an integrated circuit which can be customized to specific applications. The programmable modem uses spread spectrum techniques and is specifically programmable to alter the parameters of the modem to improve performance. The present invention also provides a systematic method and development kit to provide rapid customization of a modem for a particular application or for rapid specification of a high-performance application specific integrated circuit mode.

Abstract translation: 本发明的用于数字数据的可编程调制解调器提供了可以根据特定应用定制的集成电路中实现的高度可编程的数字调制解调器。 可编程调制解调器使用扩展频谱技术，具体可编程以改变调制解调器的参数以提高性能。 本发明还提供了一种用于为特定应用提供调制解调器的快速定制或用于快速指定高性能专用集成电路模式的系统方法和开发套件。