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：US5625884A

公开(公告)日：1997-04-29

申请号：US255684

申请日：1994-06-08

Applicant: Richard D. Gitlin ,  Chih-Lin I

Inventor： Richard D. Gitlin ,  Chih-Lin I

IPC: H04W68/00 ,  H04B7/00

CPC classification number: H04W68/00

Abstract: A method and apparatus providing communications between mobile units and other communications devices, is disclosed wherein, in response to a request to call a mobile unit from an originating communications device, a paging signal is sent via a global communications network and received by a mobile unit. The paging signal contains caller and callee identification codes, which are decoded by the mobile unit. A paging response signal, in the form of a reverse call setup signal, is then transmitted from the mobile unit to the originating communications device. Transmission of the paging signal is preferably stopped when a correspondence condition exists such that the caller and callee identification codes of the paging signal correspond to the caller and caller identification codes of the paging response signal.

Abstract translation: 公开了一种在移动单元和其他通信设备之间提供通信的方法和装置，其中响应于从始发通信设备呼叫移动单元的请求，经由全球通信网络发送寻呼信号并由移动单元接收 。 寻呼信号包含由移动单元解码的呼叫者和被叫者识别码。 然后，以反向呼叫建立信号的形式的寻呼响应信号从移动单元发送到始发通信设备。 当存在呼叫信号的呼叫者和被呼叫者识别码对应于呼叫者和寻呼响应信号的呼叫者识别码时，寻呼信号的发送最好停止。

公开(公告)号：US5119196A

公开(公告)日：1992-06-02

申请号：US542612

申请日：1990-06-25

Applicant: Ender Ayanoglu ,  Israel Bar-David ,  Richard D. Gitlin ,  Chih-Lin I ,  Jack H. Winters

Inventor： Ender Ayanoglu ,  Israel Bar-David ,  Richard D. Gitlin ,  Chih-Lin I ,  Jack H. Winters

IPC: H04N5/21

CPC classification number: H04N5/211

Abstract: Ghosts are canceled in received analog TV (for IDTV, EDTV, and HDTV) signals by utilizing the fact that there are short periods of time without the analog signals (the horizontal flyback interval between the lines) to process the received signal on a line-to-line basis using a finite impulse response (FIR) or an infinite impulse response (IIR) equalizer. This line-by-line processing (which can be implemented by periodic cleansing of the equalizer) overcomes the limitations of standard equalizers to allow for 40-50 dB of suppression of ghosts, even with nulls in the spectrum, as long as the ghost delay is less than the period of time without the analog signal. Furthermore, by using time inversion in combination with line-by-line processing, the stability problem of the conventional IIR equalizer is eliminated. The IIR equalizer may be implemented on a single digital integrated circuit. Alternatively, an FIR equalizer can be used which, although it may require multiple chips (i.e., more taps), can acquire and adapt to the ghosted channel more rapidly than an IIR equalizer. With line-by-line processing, FIR and IIR equalizers can eliminate any ghost with delays up to 11 .mu.sec in IDTV or EDTV. For larger delays, a standard IIR or FIR equalizer can be used as a preprocessor to eliminate small ghosts and an adaptive antenna can be used to eliminate large ghosts. Thus, with these techniques, the ghosting problem can be eliminated in all TV receivers.

公开(公告)号：US09020059B1

公开(公告)日：2015-04-28

申请号：US14098173

申请日：2013-12-05

Applicant: Gabriel E. Arrobo ,  Richard D. Gitlin

Inventor： Gabriel E. Arrobo ,  Richard D. Gitlin

IPC: H04L1/02 ,  H04L27/26

CPC classification number: H04L1/02 ,  H04L1/22 ,  H04L5/0023 ,  H04L27/2634 ,  H04L27/2647

Abstract: The present invention provides a Diversity Coding—Orthogonal Frequency Division Multiplexing (DC-OFDM) system and method that applies diversity coding to OFDM-based systems and provides improved probability of successful reception at the receiver and transparent self-healing and fault-tolerance. Diversity coding is well suited for OFDM-based systems because of its spatial diversity nature (parallel links). DC-OFDM provides the best performance when the probability of link error is high or when a link (sub-channel) fails. Also, by implementing diversity coding in OFDM-based systems, a reliable communication can be provided that is quite tolerant of link failures, since data and protection lines are transmitted via multiple sub-channels.

Abstract translation: 本发明提供了对基于OFDM的系统应用分集编码的分集编码 - 正交频分复用（DC-OFDM）系统和方法，并且提供了在接收机处成功接收的改进概率，并且具有透明的自愈和容错能力。 分集编码由于其空间分集性质（并行链路）而非常适合基于OFDM的系统。 当链路错误的概率较高或链路（子信道）出现故障时，DC-OFDM提供最佳性能。 此外，通过在基于OFDM的系统中实现分集编码，可以提供非常容忍链路故障的可靠通信，因为数据和保护线路经由多个子信道发送。

公开(公告)号：US5600663A

公开(公告)日：1997-02-04

申请号：US340551

申请日：1994-11-16

Applicant: Ender Ayanoglu ,  Richard D. Gitlin ,  Thomas F. La Porta ,  Sanjoy Paul ,  Krishan K. Sabnani

Inventor： Ender Ayanoglu ,  Richard D. Gitlin ,  Thomas F. La Porta ,  Sanjoy Paul ,  Krishan K. Sabnani

IPC: G06F11/10 ,  H03M13/35 ,  H04L1/00 ,  H04L1/18 ,  H03M13/00

CPC classification number: H04L1/0009 ,  H03M13/35 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1819

Abstract: A forward error correction system adaptively changes the number of parity bits, bytes or packets transmitted to a receiver, based on previous error patterns experienced recently in the reception of original and parity bits, bytes or packets by that receiver.

Abstract translation: 基于在接收原始和奇偶校验位，字节或分组中最近遇到的先前错误模式，前向纠错系统自适应地改变发送到接收机的奇偶校验位，字节或分组的数量。

公开(公告)号：US5570367A

公开(公告)日：1996-10-29

申请号：US282254

申请日：1994-07-29

Applicant: Ender Ayanoglu ,  Richard D. Gitlin ,  Thomas F. La Porta ,  Sanjoy Paul ,  Krishan K. Sabnani

Inventor： Ender Ayanoglu ,  Richard D. Gitlin ,  Thomas F. La Porta ,  Sanjoy Paul ,  Krishan K. Sabnani

IPC: H04L1/16 ,  H04L1/18 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04W28/04 ,  H04W36/08 ,  H04W36/12 ,  H04W74/06 ,  H04W76/04 ,  H04W88/16 ,  H04W92/02 ,  H04W92/10 ,  H04W92/20 ,  H04J3/16

CPC classification number: H04W76/04 ,  H04L1/1607 ,  H04L1/1685 ,  H04L1/1848 ,  H04W36/08 ,  H04W36/12 ,  H04W74/06 ,  H04W88/16 ,  H04W92/02 ,  H04W92/10 ,  H04W92/20

Abstract: A wireless communications system is arranged to provide data communications services, including error recovery, between at least one wireless end-user device and at least one one base station. The wireless end user device(s) receives(s) from the base station(s) unsolicited messages indicative of the status of data packets received by the base station(s). The wireless end-user device(s) transmit acknowledgement and request for retransmission messages only upon request, or when all the packets within a block of such packets have been received.

Abstract translation: 无线通信系统被布置成在至少一个无线终端用户设备和至少一个基站之间提供包括错误恢复的数据通信服务。 无线终端用户设备从基站接收指示由基站接收的数据分组的状态的非请求消息。 无线终端用户设备仅在请求时发送确认和请求重传消息，或者当已经接收到这种分组的块内的所有分组时。

公开(公告)号：US5278689A

公开(公告)日：1994-01-11

申请号：US22614

申请日：1993-02-19

Applicant: Richard D. Gitlin ,  Zygmunt Haas

Inventor： Richard D. Gitlin ,  Zygmunt Haas

IPC: H04J3/22 ,  H04J3/24 ,  H04J14/08 ,  H04L7/06 ,  H04L12/56 ,  H04Q11/00

CPC classification number: H04Q11/0001 ,  H04J3/22 ,  H04J3/247 ,  H04L49/3081 ,  H04L49/357 ,  H04L7/06 ,  H04J14/08 ,  H04L49/30 ,  H04Q11/0066

Abstract: Currently, with optical time division multiplexing, a switching node is operated at the peak transmission rate. For example, if the data transmission rate is 10 Gbps, the line cards in the switching circuit are also required to operate at this rate despite the fact that the switching node does not actually need to access the data at this rate. Thus, the electronics, which includes the line cards at the switching node, is expensive and less reliable than a low-speed design. In this invention the requirement of operating the switching node electronics at the high speed link bit rate is eliminated by encoding the packet header field at a lower rate than the information in the data field. As a result, the line cards need only operate at the lower header rate. This is possible because the switching node does not need to process the data portion of the packet, but only the header information. The high-speed data portion of the packet is not optically to electrically converted at the switching node, but it passes almost transparently through the switching node. The invention also discloses overlapping several logical networks on the same physical network.

Abstract translation: 目前，通过光时分复用，交换节点以峰值传输速率运行。 例如，如果数据传输速率为10Gbps，则切换电路中的线路卡还需要以该速率操作，尽管切换节点实际上不需要以该速率访问数据。 因此，包括开关节点处的线路卡的电子装置比低速设计昂贵且不太可靠。 在本发明中，通过以比数据字段中的信息更低的速率编码分组报头字段来消除以高速链路比特率操作交换节点电子设备的要求。 因此，线卡只需要在较低的标题速率下运行。 这是可能的，因为交换节点不需要处理分组的数据部分，而仅需要处理报头信息。 分组的高速数据部分在交换节点处不是光学地电转换，而是几乎透明地通过交换节点。 本发明还公开了在相同物理网络上重叠多个逻辑网络。

公开(公告)号：US5278681A

公开(公告)日：1994-01-11

申请号：US59867

申请日：1993-05-10

Applicant: Richard D. Gitlin ,  Richard V. Kollarits ,  John F. Ribera ,  Clark Woodworth

Inventor： Richard D. Gitlin ,  Richard V. Kollarits ,  John F. Ribera ,  Clark Woodworth

IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/13357 ,  G09G3/36 ,  H04N9/31 ,  H04N9/76

CPC classification number: H04N9/3108 ,  H04N9/3155 ,  H04N9/3164 ,  G02F2001/133622

Abstract: The advantages of both a color display and a high-resolution monochrome display are realized in a single display system by eliminating color filters from the display screen of the display system and illuminating the display screen with either colored light or white light to provide color or high-resolution monochrome capability, respectively. Simultaneous color and high-resolution monochrome capability is realized by illuminating predetermined portions of the display screen with only colored light while illuminating different portions of the display screen with only white light.

Abstract translation: 彩色显示器和高分辨率单色显示器的优点通过从显示系统的显示屏上消除滤色器并用彩色光或白光照亮显示屏来实现单显示系统，以提供颜色或高 分辨率单色能力。 通过仅用彩色光照亮显示屏的预定部分，同时仅用白光照亮显示屏的不同部分，实现同时色彩和高分辨率的单色能力。

公开(公告)号：US4644537A

公开(公告)日：1987-02-17

申请号：US685445

申请日：1984-12-24

Applicant: Richard D. Gitlin ,  Jean-Jacques Werner

Inventor： Richard D. Gitlin ,  Jean-Jacques Werner

IPC: H04B17/00 ,  H04L27/34 ,  H04L3/00

CPC classification number: H04L27/3472

Abstract: In a system for communicating primary and secondary data from a transmitter to a receiver, each of a first plurality of primary data word values is communicated by transmitting an individual channel symbol associated with that value, while at least one other primary data word value is communicated by transmitting a selected one of at least two other channel symbols associated with that one other value. The selected symbol is a function of the value of an individual secondary data word. In the receiver, both the primary and secondary data word values are recovered from the channel symbols thus transmitted.

Abstract translation: 在用于将主数据和次要数据从发送器传送到接收器的系统中，通过发送与该值相关联的单独信道符号来传送第一多个主数据字值中的每一个，同时传达至少一个其它主数据字值 通过发送与该另一个值相关联的至少两个其他信道符号中的所选择的一个。 所选择的符号是单个辅助数据字的值的函数。 在接收机中，主数据字和辅助数据字值都从这样发送的信道符号恢复。