公开(公告)号：WO1997032432A1

公开(公告)日：1997-09-04

申请号：PCT/US1996014043

申请日：1996-08-30

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  SRIDHAR, Manickam, R. ,  HOANG, Minh ,  WORTMAN, John, Jr. ,  LIS, Timothy, Allan

IPC: H04M11/00

CPC classification number: G06F13/128

Abstract: An apparatus (101) and method for interfacing between a processor (103) and a communications channel (105), the processor operable in data terminal equipment (102) such as a computer having a communications application program, to provide for data transmission and reception over a communications channel (105), utilizing the computer processor without additional or redundant microprocessor or digital signal processor components. The apparatus and method provide for data transfer between the interface apparatus (101) and the communications channel (105) at a first, determinate frequency corresponding to a specific data transmission rate. The apparatus and method provide for data transfer between the interface apparatus (101) and the processor (103) at a second, indeterminate frequency, and provides for interim data storage in memory (115) between data transmission (or data reception) and data processing, such as modulation and demodulation, by the computer processor (103). The apparatus and method further provide for generating an interrupt signal to the processor to indicate the presence of received data for processing and the absence of digital data for transmission.

Abstract translation: 一种用于在处理器（103）和通信信道（105）之间进行接口的装置（101）和方法，所述处理器可在诸如具有通信应用程序的计算机的数据终端设备（102）中操作，以提供数据发送和接收 通过通信信道（105），利用计算机处理器而不需要附加的或冗余的微处理器或数字信号处理器组件。 该装置和方法以对应于特定数据传输速率的第一确定频率提供接口装置（101）和通信信道（105）之间的数据传输。 该装置和方法提供在接口装置（101）和处理器（103）之间以不确定的第二频率进行数据传输，并且在数据传输（或数据接收）和数据处理之间提供在存储器（115）中的临时数据存储 ，如计算机处理器（103）的调制和解调。 该装置和方法进一步提供用于向处理器生成中断信号以指示接收的数据的存在以及用于传输的数字数据的不存在。

公开(公告)号：WO1996019047A1

公开(公告)日：1996-06-20

申请号：PCT/US1995013679

申请日：1995-10-25

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  BROWN, William, Leslie ,  MORAN, John, L., III ,  SRIDHAR, Manickam, R.

IPC: H04B01/38

CPC classification number: H04M11/06

Abstract: The present method (200, 300, 400) and device (500, 600, 700) modify phase two of the format set forth in the V.34 Recommendation of the International Telecommunication Union-Telecommunication Standardization Sector to prevent premature disconnection of calls between a call modem and an answer modem. The method and device efficiently ensure connection of the call for high speed data transmission over voiceband channels, by modification of one of: a phase preliminary to phase one and phase two. One implementation, in the answer modem, includes transmitting a signal having first information, followed by a Signal S comprising a guard tone and a signal SI, wherein an energy of a predetermined guard tone is greater than an energy of a predetermined range of frequencies of the Signal SI; and continuing transmitting and receiving in accordance with the modified V.34 operation.

Abstract translation: 本方法（200,300,400）和设备（500,600,700）修改了国际电信联盟 - 电信标准化部门V.34建议书中阐述的格式的第二阶段，以防止呼叫之间的过早断开 呼叫调制解调器和应答调制解调器。 该方法和设备有效地确保通过语音频带信道进行高速数据传输的呼叫的连接，通过修改以下之一：初步到阶段1和阶段2之一。 应答调制解调器中的一个实现包括发送具有第一信息的信号，其后是包括保护音和信号SI的信号S，其中预定保护音的能量大于预定保护音的预定频率的能量 信号SI; 并根据经修改的V.34操作继续发送和接收。

公开(公告)号：WO1996032795A1

公开(公告)日：1996-10-17

申请号：PCT/US1996002196

申请日：1996-02-20

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  SRIDHAR, Manickam, R. ,  SHEER, Neil

IPC: H04L23/00

CPC classification number: H04L27/0008

Abstract: An automatic modulation mode selecting unit (208) and a method (100) provide for selection from a plurality of modulation modes having an optimized transmission time for a data file. This is particularly useful where a small data file is to be transmitted, such as for a hand-held message pad. The present invention may select a modulation mode having a slow data rate but a short training time to achieve a shorter transmission time a small data file in comparison with using another modulation mode having a fast data rate but a longer training time, and thus a longer transmission time. The automatic modulation mode selecting unit includes a mode select controller (202), a mode computer (204), and a mode select switch (206) for selecting a modulation mode based on a calculated optimized transmission time.

Abstract translation: 自动调制模式选择单元（208）和方法（100）提供从具有数据文件的优化传输时间的多个调制模式中进行选择。 如果要发送小数据文件，例如对于手持消息板，这是特别有用的。 本发明可以选择具有慢数据速率但是具有短训练时间的调制模式，以便与使用具有快速数据速率但是具有较长训练时间的另一种调制模式相比较，从而实现较小数据文件的传输时间更短，因此更长 传输时间。 自动调制模式选择单元包括模式选择控制器（202），模式计算机（204）和模式选择开关（206），用于基于所计算的优化传输时间来选择调制模式。

公开(公告)号：EP0746912B1

公开(公告)日：2006-04-26

申请号：EP95938864.6

申请日：1995-10-25

Applicant: MOTOROLA, INC.

Inventor： BROWN, William, Leslie ,  MORAN, John, L., III ,  SRIDHAR, Manickam, R.

IPC: H04B1/38 ,  H04J3/12 ,  H04M11/00

CPC classification number: H04M11/06

Abstract: The present method (200, 300, 400) and device (500, 600, 700) modify phase two of the format set forth in the V.34 Recommendation of the International Telecommunication Union-Telecommunication Standardization Sector to prevent premature disconnection of calls between a call modem and an answer modem. The method and device efficiently ensure connection of the call for high speed data transmission over voiceband channels, by modification of one of: a phase preliminary to phase one and phase two. One implementation, in the answer modem, includes transmitting a signal having first information, followed by a Signal S comprising a guard tone and a signal SI, wherein an energy of a predetermined guard tone is greater than an energy of a predetermined range of frequencies of the Signal SI; and continuing transmitting and receiving in accordance with the modified V.34 operation.

公开(公告)号：EP0746912A1

公开(公告)日：1996-12-11

申请号：EP95938864.0

申请日：1995-10-25

Applicant: MOTOROLA, INC.

Inventor： BROWN, William, Leslie ,  MORAN, John, L., III ,  SRIDHAR, Manickam, R.

IPC: H04M11

CPC classification number: H04M11/06

Abstract: The present method (200, 300, 400) and device (500, 600, 700) modify phase two of the format set forth in the V.34 Recommendation of the International Telecommunication Union-Telecommunication Standardization Sector to prevent premature disconnection of calls between a call modem and an answer modem. The method and device efficiently ensure connection of the call for high speed data transmission over voiceband channels, by modification of one of: a phase preliminary to phase one and phase two. One implementation, in the answer modem, includes transmitting a signal having first information, followed by a Signal S comprising a guard tone and a signal SI, wherein an energy of a predetermined guard tone is greater than an energy of a predetermined range of frequencies of the Signal SI; and continuing transmitting and receiving in accordance with the modified V.34 operation.

公开(公告)号：EP0765559A1

公开(公告)日：1997-04-02

申请号：EP96906525.0

申请日：1996-02-20

Applicant: MOTOROLA, INC.

Inventor： SRIDHAR, Manickam, R. ,  SHEER, Neil

IPC: H04L27

CPC classification number: H04L27/0008

Abstract: An automatic modulation mode selecting unit (208) and a method (100) provide for selection from a plurality of modulation modes having an optimized transmission time for a data file. This is particularly useful where a small data file is to be transmitted, such as for a hand-held message pad. The present invention may select a modulation mode having a slow data rate but a short training time to achieve a shorter transmission time a small data file in comparison with using another modulation mode having a fast data rate but a longer training time, and thus a longer transmission time. The automatic modulation mode selecting unit includes a mode select controller (202), a mode computer (204), and a mode select switch (206) for selecting a modulation mode based on a calculated optimized transmission time.

公开(公告)号：EP0509037B1

公开(公告)日：1999-08-25

申请号：EP91902538.7

申请日：1991-01-03

Applicant: MOTOROLA INC.

Inventor： SCHROEDER, Stephen ,  SRIDHAR, Manickam, R.

IPC: H04B1/74 ,  H04M11/06

CPC classification number: H04B1/74 ,  H04M11/06

公开(公告)号：EP0885517A1

公开(公告)日：1998-12-23

申请号：EP96930657.0

申请日：1996-08-30

Applicant: MOTOROLA, INC.

Inventor： SRIDHAR, Manickam, R. ,  HOANG, Minh ,  WORTMAN, John, Jr. ,  LIS, Timothy, Allan

IPC: G06F13

CPC classification number: G06F13/128

Abstract: An apparatus (101) and method for interfacing between a processor (103) and a communications channel (105), the processor operable in data terminal equipment (102) such as a computer having a communications application program, to provide for data transmission and reception over a communications channel (105), utilizing the computer processor without additional or redundant microprocessor or digital signal processor components. The apparatus and method provide for data transfer between the interface apparatus (101) and the communications channel (105) at a first, determinate frequency corresponding to a specific data transmission rate. The apparatus and method provide for data transfer between the interface apparatus (101) and the processor (103) at a second, indeterminate frequency, and provides for interim data storage in memory (115) between data transmission (or data reception) and data processing, such as modulation and demodulation, by the computer processor (103). The apparatus and method further provide for generating an interrupt signal to the processor to indicate the presence of received data for processing and the absence of digital data for transmission.