公开(公告)号：US5673307A

公开(公告)日：1997-09-30

申请号：US198943

申请日：1994-02-17

Applicant: Bruce M. Holland ,  Gary L. Bliss ,  Bryan Edwards

Inventor： Bruce M. Holland ,  Gary L. Bliss ,  Bryan Edwards

IPC: H04W36/30 ,  H04Q7/22 ,  H04Q7/38

CPC classification number: H04W36/30

Abstract: A method, system, and apparatus for communication and handoff in a cellular phone system in which candidate cell units which can support communication with a mobile phone are identified. Neighbor cell units which have recently supported communication with the mobile phone are also identified. Handoff threshold values for each candidate cell are determined based on the existing communication quality and whether the candidate cell is also a neighbor cell such that the handoff threshold is higher when the candidate cell is a neighbor cell. A decision to handoff is made when the improvement offered by candidate cell is greater than the handoff threshold.

Abstract translation: 一种蜂窝电话系统中的通信和切换的方法，系统和装置，其中识别出可以支持与移动电话的通信的候选小区单元。 最近也支持与移动电话的通信的邻居小区单元也被识别。 基于现有通信质量以及候选小区是否也是相邻小区来确定每个候选小区的切换阈值，使得当候选小区是相邻小区时切换阈值较高。 当候选小区提供的改进大于切换阈值时，进行切换的决定。

公开(公告)号：US5177765A

公开(公告)日：1993-01-05

申请号：US709691

申请日：1991-06-03

Applicant: Bruce M. Holland ,  Gary L. Bliss

Inventor： Bruce M. Holland ,  Gary L. Bliss

IPC: H04B1/7075 ,  H04B1/7085

CPC classification number: H04B1/70756 ,  H04B1/7085

Abstract: A system and method of driect-sequence spread-spectrum TDMA (or TDD) digital communication, wherein acquisition and tracking occurs for a plurality of frames having a predetermined number of time slots. One of the predetermined number of time slots in each frame is assigned for acquisition purposes and carries acquisition and sync digital information. The remaining time slots in each frame have assigned header bytes for tracking purposes. The assigned acquisition time slot is spread with an acquisition direct-sequence spreading code. The remaining time slots are spread with a communication direct-sequence spreading code. During acquisition, the signal strength in each successive time slot for each spread frame is measured for a given number of time frames. The peak is located within the given number of time frames through a major acquistion sweep and a refinement sweep. The major acquisition sweep and refinement acquisition sweep locate the frame and time slot boundaries of the transmitted signal. Once acquired, tracking occurs during the header bytes of each successive remaining time slot. Acquisition, tracking and demodulation of the digital data is performed with the same circuitry.

Abstract translation: 一种干扰序列扩频TDMA（或TDD）数字通信的系统和方法，其中针对具有预定数量时隙的多个帧发生采集和跟踪。 每帧中预定数量的时隙中的一个被分配用于采集目的并且携带采集和同步数字信息。 每帧中剩余的时隙分配了头字节用于跟踪。 分配的采集时隙用采集直接序列扩展码扩展。 剩余的时隙用通信直接序列扩展码扩展。 在采集期间，对于给定数量的时间帧，测量每个扩展帧的每个连续时隙中的信号强度。 峰值通过​​主要的获取扫描和细化扫描位于给定数量的时间范围内。 主要采集扫描和细化采集扫描定位发射信号的帧和时隙边界。 一旦获得，跟踪发生在每个连续的剩余时隙的标题字节期间。 使用相同的电路来执行数字数据的采集，跟踪和解调。

公开(公告)号：US5687217A

公开(公告)日：1997-11-11

申请号：US418490

申请日：1995-04-07

Applicant: Gary L. Bliss ,  Bryan Edwards

Inventor： Gary L. Bliss ,  Bryan Edwards

IPC: H04W16/20 ,  H04W24/00 ,  H04Q7/22

CPC classification number: H04W16/20 ,  H04W24/00

Abstract: A method and system for verifying that each remote cell unit in a cellular phone system is operational. The system and method in accordance with the present invention use the receiver equipment of each cell unit to listen to or monitor transmissions by other cell units. Each cell unit is independently placed in a listen verification mode in which it measures communication quality of other cell units that it can hear. The selected cell unit reports the communication quality results to a master control unit. The master control unit stores the result information to allow a comparison of communication quality over time. If communication quality has degraded over time by a significant amount, the master control unit signals an alarm. In another aspect of the present invention, the listen verification mode can be used during installation of the cellular system to verify performance of the system and adjust the system for optimal performance.

Abstract translation: 一种用于验证蜂窝电话系统中的每个远程小区单元是否可操作的方法和系统。 根据本发明的系统和方法使用每个小区单元的接收机设备监听或监视其他小区单元的传输。 每个单元单元被独立地置于监听验证模式中，其中它测量可以听到的其他单元单元的通信质量。 所选单元单元将通信质量结果报告给主控单元。 主控制单元存储结果信息以允许随时间比较通信质量。 如果通信质量随时间降低大量，主控制单元发出报警。 在本发明的另一方面，在安装蜂窝系统期间可以使用监听验证模式来验证系统的性能并且调整系统以获得最佳性能。

公开(公告)号：US5557653A

公开(公告)日：1996-09-17

申请号：US97881

申请日：1993-07-27

Applicant: Graeme S. Paterson ,  Gary L. Bliss ,  Mark R. Boyd

Inventor： Graeme S. Paterson ,  Gary L. Bliss ,  Mark R. Boyd

IPC: H04B1/38 ,  H04M1/60 ,  H04M11/00

CPC classification number: H04M1/6058 ,  H04B1/38

Abstract: A wireless telephone using an RF receiver unit and an RF transmitter unit and having a removable headset, the telephone and headset particularly suitable for applications where the RF transmitter unit is switched on and off at a frequency less than twenty kilohertz. The wireless telephone is coupled to the headset using a conventional stereo plug and jack. A headset detect logic signal is generated from the speaker audio line. A microphone current detect logic signal is generated from the microphone audio line. A digital logic circuit, preferably including a microprocessor, monitors the headset detect logic signal and microphone current detect logic signals and generates a programmed response to the headset detect logic signal. The programmed response reduces audible noise to the headset user, generates a ringing signal on the speaker audio line when an incoming call is received and allows the headset user to answer incoming calls, and place outgoing calls while touching only the headset. The wireless telephone and headset include circuitry to reject RF noise and circuitry to attenuate RF noise passed into the wireless telephone by a long multi-conductor wire coupling the headset to the wireless telephone.

Abstract translation: 一种使用RF接收器单元和RF发射器单元并具有可移动耳机的无线电话，该电话和耳机特别适用于RF发射器单元以小于二十千赫兹的频率被接通和断开的应用。 无线电话使用传统的立体声插头和插孔耦合到耳机。 从扬声器音频线产生耳机检测逻辑信号。 从麦克风音频线产生麦克风电流检测逻辑信号。 优选地包括微处理器的数字逻辑电路监视耳机检测逻辑信号和麦克风电流检测逻辑信号，并产生对耳机检测逻辑信号的编程响应。 编程的响应减少耳机用户的可听见的噪音，当接收到来电时，会在扬声器音频线路上产生振铃信号，并允许耳机用户接听来电，并在仅触摸耳机时拨打电话。 无线电话和耳机包括拒绝RF噪声的电路和用于衰减通过将耳机连接到无线电话的长的多导线来传送到无线电话中的RF噪声的电路。

公开(公告)号：US5794163A

公开(公告)日：1998-08-11

申请号：US482895

申请日：1995-06-07

Applicant: Graeme S. Paterson ,  Gary L. Bliss ,  Mark R. Boyd

Inventor： Graeme S. Paterson ,  Gary L. Bliss ,  Mark R. Boyd

IPC: H04B1/38 ,  H04M1/60 ,  H04Q7/32

CPC classification number: H04M1/6058 ,  H04B1/38

Abstract: A wireless telephone using an RF receiver unit and an RF transmitter unit and having a removable headset, the telephone and headset particularly suitable for applications where the RF transmitter unit is switched on and off at a frequency less than twenty kilohertz. The wireless telephone is coupled to the headset using a conventional stereo plug and jack. A headset detect logic signal is generated from the speaker audio line. A microphone current detect logic signal is generated from the microphone audio line. A digital logic circuit, preferably including a microprocessor, monitors the headset detect logic signal and microphone current detect logic signals and generates a programmed response to the headset detect logic signal. The programmed response reduces audible noise to the headset user, generates a ringing signal on the speaker audio line when an incoming call is received and allows the headset user to answer incoming calls, and place outgoing calls while touching only the headset. The wireless telephone and headset include circuitry to reject RF noise and circuitry to attenuate RF noise passed into the wireless telephone by a long multi-conductor wire coupling the headset to the wireless telephone.

公开(公告)号：US5596638A

公开(公告)日：1997-01-21

申请号：US475020

申请日：1995-06-06

Applicant: Graeme S. Paterson ,  Gary L. Bliss ,  Mark R. Boyd

Inventor： Graeme S. Paterson ,  Gary L. Bliss ,  Mark R. Boyd

IPC: H04B1/38 ,  H04M1/60 ,  H04M1/00

CPC classification number: H04M1/6058 ,  H04B1/38

Abstract: A wireless telephone using an RF receiver unit and an RF transmitter unit and having a removable headset, the telephone and headset particularly suitable for applications where the RF transmitter unit is switched on and off at a frequency less than twenty kilohertz. The wireless telephone is coupled to the headset using a conventional stereo plug and jack. A headset detect logic signal is generated from the speaker audio line. A microphone current detect logic signal is generated from the microphone audio line. A digital logic circuit, preferably including a microprocessor, monitors the headset detect logic signal and microphone current detect logic signals and generates a programmed response to the headset detect logic signal. The programmed response reduces audible noise to the headset user, generates a ringing signal on the speaker audio line when an incoming call is received and allows the headset user to answer incoming calls, and place outgoing calls while touching only the headset. The wireless telephone and headset include circuitry to reject RF noise and circuitry to attenuate RF noise passed into the wireless telephone by a long multi-conductor wire coupling the headset to the wireless telephone.

Abstract translation: 一种使用RF接收器单元和RF发射器单元并具有可移动耳机的无线电话，该电话和耳机特别适用于RF发射器单元以小于二十千赫兹的频率被接通和断开的应用。 无线电话使用传统的立体声插头和插孔耦合到耳机。 从扬声器音频线产生耳机检测逻辑信号。 从麦克风音频线产生麦克风电流检测逻辑信号。 优选地包括微处理器的数字逻辑电路监视耳机检测逻辑信号和麦克风电流检测逻辑信号，并产生对耳机检测逻辑信号的编程响应。 编程的响应减少耳机用户的可听见的噪音，当接收到来电时，会在扬声器音频线路上产生振铃信号，并允许耳机用户接听来电，并在仅触摸耳机时拨打电话。 无线电话和耳机包括拒绝RF噪声的电路和用于衰减通过将耳机连接到无线电话的长的多导线来传送到无线电话中的RF噪声的电路。

公开(公告)号：US5177766A

公开(公告)日：1993-01-05

申请号：US709600

申请日：1991-06-03

Applicant: Bruce M. Holland ,  Gary L. Bliss

Inventor： Bruce M. Holland ,  Gary L. Bliss

IPC: H04B1/707

CPC classification number: H04B1/707

Abstract: A unique method and system is disclosed for generating digital clock timing in a receiver for use in direct-sequence spread-spectrum digital communication systems wherein spread data is delivered from a transmitter to a receiver. The present invention provides at the transmitter frames of digital communication data with each frame having a plurality of time slots and with each time slot having a plurality of digital bits. The transmitter utilizes direct-sequence spreading codes for spreading the digital bits in the time frame. The direct sequence spreading codes each have the same fixed sequence length of M chips and, furthermore, the number of chips per bit CB to spread each digital bit is constant and fully aligned with each digital bit. The ration of M:CB is an integer and the ratio of time of each time slot to the time of the M chips also equals an integer. The spread frames of digital information are despread at the receiver with receiver provided identical direct-sequence codes. The digital clock timing is generated from the receiver's pseudo random sequence generator. Bit timing equals CB*8, nibble timing equals 4*CB, and byte timing equals CB.

Abstract translation: 公开了用于在接收机中产生数字时钟定时的独特方法和系统，用于直接序列扩频数字通信系统，其中扩展数据从发射机传送到接收机。 本发明在数字通信数据的发射机帧中提供每个帧具有多个时隙，并且每个时隙具有多个数字比特。 发射机利用直接序列扩展码在时间帧内扩展数字比特。 直接序列扩展码各自具有相同的M个码片的固定序列长度，此外，扩展每个数字比特的每比特CB的码片数是恒定的并且与每个数字比特完全对齐。 M：CB的比例是整数，每个时隙的时间与M个码片的时间的比率也等于一个整数。 数字信息的扩展帧在接收机处被解扩，接收机提供相同的直接序列码。 从接收机的伪随机序列发生器产生数字时钟定时。 位定时等于CB * 8，半字节定时等于4 * CB，字节定时等于CB。