公开(公告)号：US20050265350A1

公开(公告)日：2005-12-01

申请号：US10857243

申请日：2004-05-28

Applicant: Murali Narasimha ,  Alberto Gutierrez

Inventor： Murali Narasimha ,  Alberto Gutierrez

IPC: H04L12/56 ,  H04W4/06 ,  H04W4/10 ,  H04W68/12 ,  H04W76/02 ,  H04W84/04

CPC classification number: H04L65/4061 ,  H04L65/1016 ,  H04W4/10 ,  H04W68/12 ,  H04W72/005 ,  H04W76/10 ,  H04W76/45 ,  H04W84/042

Abstract: This concurrent packet data session set-up for Push-to-talk over Cellular (PoC) services decreases the connection set-up time for a PoC call by using processes that are circuit-switched-based to locate and page a called communication device, and to initiate traffic and packet data session set-ups for the called communication device. A method for setting up a packet data session between an originating communication device (211) and a called communication device (215) includes the steps of: requesting a called-device active packet data session set-up for the called communication device (messages 271, 272, 273, 274, 275) and initiating an originating-device active packet data session set-up for the originating communication device (messages 271, 222, 224). The first step can use circuit-switched-based messages and processes to locate the called communication device and set up a traffic channel for the called communication device. After an active packet data session (263) is set-up for the originating communication device (211), the originating-device active packet data session (263) can be used to request a PoC voice channel (message 290). Because a called-device active packet data session set-up has already been requested, the called communication device (215) can respond to the PoC voice channel request quickly (message 293).

Abstract translation: 这种用于一键通蜂窝（PoC）服务的并发分组数据会话建立通过使用基于电路交换的进程来定位和寻呼被叫通信设备来减少PoC呼叫的连接建立时间， 并为被叫通信设备发起业务和分组数据会话建立。 一种用于在始发通信设备（211）和被叫通信设备（215）之间建立分组数据会话的方法包括以下步骤：请求被叫设备主动分组数据会话建立被叫通信设备（消息271 ，272,273,274,275），并发起用于始发通信设备（消息271,222,224）的始发设备活动分组数据会话建立。 第一步可以使用基于电路交换的消息和过程来定位被叫通信设备并为被叫通信设备建立业务信道。 在对始发通信设备（211）建立活动分组数据会话（263）之后，发起设备活动分组数据会话（263）可用于请求PoC话音信道（消息290）。 因为已经请求了被叫设备活动分组数据会话建立，被叫通信设备（215）可以快速地响应PoC语音信道请求（消息293）。

公开(公告)号：US06285669B1

公开(公告)日：2001-09-04

申请号：US09116407

申请日：1998-07-16

Applicant: Alberto Gutierrez

Inventor： Alberto Gutierrez

IPC: H04B7216

CPC classification number: H04W16/14 ,  H04B1/707 ,  H04B7/2628 ,  H04J13/0048 ,  H04J13/10

Abstract: A CDMA communication system supports underlay transmissions and direct spread overlay transmissions such that the overlay transmissions are at least partially orthogonal to underlay transmissions. A base station supports both the underlay transmissions and the overlay transmissions and includes an interface to a mobile switching center, an underlay unit, an overlay unit and at least one radio frequency (RF) unit. The interface receives communications intended for a plurality of mobile stations serviced by the base station. These communications include underlay communications intended for mobile stations (MSs) supporting underlay transmissions and overlay communications intended for MSs supporting overlay transmissions. The underlay unit receives the underlay portion of the communications and produces underlay transmissions. The overlay unit receives the overlay portion of the communications and produces overlay transmissions. Then, the underlay transmissions and the overlay transmissions are received by the at least one RF unit and transmitted via at least one antenna to the plurality of MSs. Each of the MSs receives both the underlay transmissions and the overlay transmissions. However, those MSs supporting the underlay transmissions extract intended underlay communications while the MSs supporting overlay transmissions extract intended overlay communications. The underlay unit and the overlay unit produce the overlay transmissions such that they are at least partially orthogonal to the underlay transmissions. A synchronization unit coupled to the underlay unit and the overlay unit that causes the overlay transmissions to be substantially synchronized with the underlay transmissions. In another construction, differing base stations provide the underlay transmissions and the overlay transmissions.

Abstract translation: CDMA通信系统支持底层传输和直接扩展覆盖传输，使得覆盖传输至少部分地与底层传输正交。 基站支持底层传输和覆盖传输，并且包括到移动交换中心，底层单元，覆盖单元和至少一个射频（RF）单元的接口。 接口接收针对由基站服务的多个移动台的通信。 这些通信包括旨在用于支持底层传输的移动站（MS）的底层通信和旨在用于支持覆盖传输的MS的覆盖通信。 底层单元接收通信的底层部分并产生底层传输。 覆盖单元接收通信的覆盖部分并产生覆盖传输。 然后，底层传输和覆盖传输由至少一个RF单元接收并且经由至少一个天线发送到多个MS。 每个MS接收底层传输和覆盖传输。 然而，支持底层传输的那些MS提取预期的底层通信，而支持覆盖传输的MS提取预期的覆盖通信。 底层单元和覆盖单元产生覆盖传输，使得它们至少部分地与底层传输正交。 耦合到底层单元和覆盖单元的同步单元，其使覆盖传输与底层传输基本上同步。 在另一种结构中，不同的基站提供底层传输和覆盖传输。

公开(公告)号：US6097712A

公开(公告)日：2000-08-01

申请号：US879773

申请日：1997-06-20

Applicant: Norman P. Secord ,  Leo Strawczynski ,  Alberto Gutierrez ,  Ahmad Jalali

Inventor： Norman P. Secord ,  Leo Strawczynski ,  Alberto Gutierrez ,  Ahmad Jalali

IPC: H04L5/02 ,  H04B7/216 ,  H04L27/30

CPC classification number: H04L5/026

Abstract: In a receiver of a simulcast multi-carrier CDMA (code division multiple access) communications system, a combined data signal is produced by combining signals representing data received for the plurality of carriers and is multiplied by the complex conjugate of a composite reference signal, representing characteristics of the plurality of carriers, produced by combining signals representing a reference signal received for the plurality of carriers, thereby improving multi-path resolution due to frequency diversity of the reference signal over the multiple carriers of the system. The receiver can be simplified by demodulating the signals of the plurality of carriers in common to produce a demodulated signal which is common to the data and reference signals for the plurality of carriers, the data and reference signals being subsequently separated using their respective orthogonal codes. Data signals can be recovered both with and without the improved multi-path resolution over the multiple carriers, and an optimum selection between them can be made.

Abstract translation: 在联播多载波CDMA（码分多址）通信系统的接收机中，组合数据信号通过组合表示针对多个载波接收的数据的信号产生，并且乘以复合参考信号的复共轭，代表 通过组合表示为多个载波接收的参考信号的信号而产生的多个载波的特性，从而改善由于参考信号在系统的多个载波上的频率分集而导致的多径分辨率。 可以通过共同解调多个载波的信号来简化接收机，以产生对于多个载波的数据和参考信号共同的解调信号，随后使用它们各自的正交码分离数据和参考信号。 数据信号可以在多载波上具有和不具有改进的多径分辨率的情况下被恢复，并且可以在它们之间进行最佳的选择。

公开(公告)号：US07058077B1

公开(公告)日：2006-06-06

申请号：US09762991

申请日：1999-08-11

Applicant: Ning Guo ,  Mo-Han Fong ,  Alberto Gutierrez ,  Wen Tong

Inventor： Ning Guo ,  Mo-Han Fong ,  Alberto Gutierrez ,  Wen Tong

IPC: H04J3/16 ,  H04J3/24

CPC classification number: H04L1/0007 ,  H04L1/0059 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/1812

Abstract: A flexible frame arrangement for a CDMA wireless communications network is disclosed. A signal for transmission in the network includes several frames for transferring data between network nodes. At least one of the frames includes a hierarchical sub-frame structure having a physical layer frame and an interleaver block, a forward error control (FEC) block, and an automatic repeat request (ARQ) block. The sub-frame arrangement may be used in a spread spectrum wireless network such as CDMA2000 or W-CDMA. The FEC blocks transmit error control information and are subdivided into one or more of the ARQ blocks. Each ARQ block includes information bits and overhead bits such as cyclic redundancy code (CRC) bits and zero bits.

Abstract translation: 公开了一种用于CDMA无线通信网络的灵活的帧布置。 用于在网络中传输的信号包括用于在网络节点之间传送数据的几个帧。 帧中的至少一个包括具有物理层帧和交织器块的分层子帧结构，前向错误控制（FEC）块和自动重传请求（ARQ）块。 子帧布置可以用在诸如CDMA2000或W-CDMA的扩频无线网络中。 FEC块发送错误控制信息，并被细分为一个或多个ARQ块。 每个ARQ块包括信息比特和开销比特，例如循环冗余码（CRC）比特和零比特。

公开(公告)号：US20050143111A1

公开(公告)日：2005-06-30

申请号：US10749083

申请日：2003-12-30

Applicant: Matthew Fitzpatrick ,  Alberto Gutierrez ,  William Worger

Inventor： Matthew Fitzpatrick ,  Alberto Gutierrez ,  William Worger

IPC: H04W4/10 ,  H04W84/08 ,  H04B7/00

CPC classification number: H04W4/10 ,  H04W76/45

Abstract: A method of determining PTT availability of members of a contact list in a wireless PTT communication system makes efficient use of resources by updating client devices (118, 122, 126) with new PTT contact list status information only when necessary. The availability of client devices (118, 122, 126) associated with contact lists (528, 530, 532) are determined by a PTT controller (112) according to the content of messages from the client devices (118, 122, 126). New information regarding the availability of a client device associated with a contact list (528, 530, 532) is transmitted to relevant client devices (118, 122, 126) only when a change has occurred in the availability of a member. Likewise, a client device (118, 122, 126) notifies the PTT controller 112 of its availability only when a change occurs.

Abstract translation: 在无线PTT通信系统中确定联系人列表的成员的PTT可用性的方法通过仅在必要时通过用新的PTT联系人列表状态信息更新客户端设备（118,122,126）来有效地利用资源。 与PTT控制器（112）根据来自客户端设备（118,122,126）的消息内容来确定与联系人列表（528,530,532）相关联的客户端设备（118,122,126）的可用性。 仅当成员的可用性发生变化时，关于与联系人列表（528,530,532）相关联的客户端设备的可用性的新信息被发送到相关的客户端设备（118,122,126）。 类似地，客户端设备（118,122,126）仅在发生改变时通知PTT控制器112其可用性。

公开(公告)号：US06519266B1

公开(公告)日：2003-02-11

申请号：US09218964

申请日：1998-12-22

Applicant: Serge Manning ,  Alberto Gutierrez ,  Ibrahim Ghaleb

Inventor： Serge Manning ,  Alberto Gutierrez ,  Ibrahim Ghaleb

IPC: H04J1300

CPC classification number: H04L29/06 ,  H04L69/32 ,  H04W4/00 ,  H04W24/00 ,  H04W80/02

Abstract: A communications system and method that separates operational aspects of a packet data service to be provided on a wireless network into separate, independent state diagrams. The method first decomposes the communication service into several different service layers. The method then defines a dynamic behavior of the service layers and an interaction therebetween. Once the behavior and interaction between the layers is defined, the method creates a control element with which to coordinate the service layers.

Abstract translation: 将要在无线网络上提供的分组数据服务的操作方面分离成独立的独立状态图的通信系统和方法。 该方法首先将通信服务分解成几个不同的服务层。 该方法然后定义服务层的动态行为及其间的交互。 一旦定义了层之间的行为和交互，该方法将创建一个控制元素来与其协调服务层。

公开(公告)号：US5227538A

公开(公告)日：1993-07-13

申请号：US792227

申请日：1991-11-14

Applicant: Stephen L. Buchwald ,  Alberto Gutierrez ,  Robert B. Grossman

Inventor： Stephen L. Buchwald ,  Alberto Gutierrez ,  Robert B. Grossman

IPC: C07B41/02 ,  C07B43/04 ,  C07C29/143 ,  C07C29/147 ,  C07C209/52 ,  C07D207/06 ,  C07D295/023 ,  C07D307/52

CPC classification number: C07D295/023 ,  C07B41/02 ,  C07B43/04 ,  C07C209/52 ,  C07C29/143 ,  C07C29/147 ,  C07D207/06 ,  C07D307/52 ,  C07B2200/07

Abstract: A process is provided for the catalytic asymmetric reduction of ketones to provide alcohol reaction products which are enriched in one enantiomer. The asymmetric reduction is accomplished utilizing an achiral metal precatalyst in combination with an optically active additive.

Abstract translation: 提供了一种用于催化不对称还原酮的方法，以提供富含一种对映体的醇反应产物。 不对称还原通过与光学活性添加剂组合的非手性金属预催化剂来实现。

公开(公告)号：US4850866A

公开(公告)日：1989-07-25

申请号：US202487

申请日：1988-06-06

Applicant: Alberto Gutierrez ,  Carlos Gutierrez

Inventor： Alberto Gutierrez ,  Carlos Gutierrez

IPC: A61C19/04

CPC classification number: A61C19/041

Abstract: A method and apparatus are provided for use by dentists in determining the actual length of a root canal based upon a single x-ray picture. The method involves inserting a probe a known distance partially into the root canal before taking the x-ray picture. The picture is then analyzed to compare the visually observed, apparent lengths of the root canal and probe with the known length of the probe. The actual length of the root canal is determined by direct arithmetic proportion based upon the observed apparent lengths. The apparatus facilitates measurement of said observed apparent lengths utilizing manipulating knobs and an illuminated scale resembling a thermometer scale.

Abstract translation: 提供了一种方法和装置，用于由牙医根据单个x射线照片确定根管的实际长度。 该方法包括在拍摄x射线照片之前将探头已知距离部分插入根管。 然后分析图片以比较目视观察的根管和探针的表观长度与探头的已知长度。 根管的实际长度根据观察到的表观长度由直接算术比例确定。 该装置有助于利用操纵旋钮和类似于温度计的照明尺度来测量所述观察到的表观长度。