1 |
用于数字加载主线的警报和测试系统 |
CN94105613.9 |
1991-09-17 |
CN1112318A |
1995-11-22 |
大卫·布里文; 安东尼·南尼卡; 菲利浦·B·维尔; 葛拉·L·希米拉克; 宋力安·S·曼拉尼 |
一种测试系统,适用于通过单根绞合双股线传送和接收多路电话传输信号的装置,此系统由一个线路卡将来自一本地交换台的模拟信号转换为80千码元/秒信号,并通过一绞合双股线进行传送。一个远方终端将此80千码元/秒信号转换回普通模拟信号,以用于常规的电话、传真机或其它有关设备。此测试设备可分别测试整个系统,系统的线路卡部分,系统的远方终端部分以及绞合双股线。 |
2 |
填充凝胶的模块化电气接插件 |
CN94190989.1 |
1994-01-12 |
CN1116884A |
1996-02-14 |
杰拉尔德·L·希米拉克; 雅姬·托马斯; 米格尔·莫拉莱斯; 约根德拉·达尼克; 达尔塞·梅斯纳 |
一种能抵御环境的电气插座和插头组件(10)能在反复插拔后仍然保护抵御环境的作用。插座和插头组件包括:一含有一导电体(85)并能接纳插头(90)的插座(100);环境密封剂(140)至少部分填充插座,从而当插头插入插座时,至少有一部分密封剂从插座中移开;以及有一凹坑(50)的弹性容器装置(40),用以在插头插入时,该装置向外弯曲而容纳移出的密封剂,并且当插头拔出时使密封剂返回插座。 |
3 |
用于数字加载主线的警报和测试系统 |
CN91109118.1 |
1991-09-17 |
CN1029061C |
1995-06-21 |
大卫·布里文; 安东尼·南尼卡; 菲力浦·B·维尔; 葛拉·L·希米拉克; 宋力安·S·曼拉尼 |
一种测试系统,适用于通过单根绞合双股线传送和接收多路电话传输信号的装置。此系统由一个线路卡将来自一本地交换台的模拟信号转换为80千码元/秒信号,并通过一绞合双股线进行传送。一个远方终端将此80千码元/秒信号转换回普通模拟信号,以用于常规的电话、传真机或其它有关设备。此测试设备可分别测试整个系统,系统的线路卡部分,系统的远方终端部分以及绞合双股线。 |
4 |
用于数字加载主线的警报和测试系统 |
CN91109118.1 |
1991-09-17 |
CN1060001A |
1992-04-01 |
大卫·布里文; 安东尼·南尼卡; 菲力浦·B·维尔; 葛拉·L·希米拉克; 宋力安·S·曼拉尼 |
一种测试系统,适用于通过单根绞合双股线传送和接收多路电话传输信号的装置。此系统由一个线卡将来自一本地交换台的模拟信号转换为80千符号/秒信号,并通过一绞合双股线进行传送。一个远方终端将此80千符号/秒信号转换回普通模拟信号,以用于常规的电话、传真机或其它有关设备。此测试设备可分别测试整个系统,系统的线卡部分,系统的远方终端部分以及绞合双股线。 |
5 |
Gel-filled modular electrical connection block |
JP51708194 |
1994-01-12 |
JPH08506210A |
1996-07-02 |
SHIMIRAK GERALD L; THOMAS JACKIE; MORALES MIGUEL; DHANIK YOGENDRA S; MESSNER DARCEY |
(57)【要約】 周囲から保護された電気ソケット及びプラグ組立体(10)は、反復接続及び分離の間中、周囲からの保護を保持する。 ソケット及びプラグ組立体は、導体(85)を収容し、プラグを挿入可能に受け入れるようになっているソケット(100)を含む。 プラグがソケット内に挿入されたとき、密閉剤がソケットから、少なくとも部分的に移動するように、周囲密閉剤は、ソケットを少なくとも部分的に充填する。 閉じ込め用弾性手段(40)は、プラグがソケット内に挿入されたときに、移動された密閉剤を収容し、プラグが外されたときに、密閉剤をソケット内に戻すように、外側に偏向されるはめ込みくぼみを有する。 |
6 |
JPH07508863A - |
JP50189493 |
1993-06-30 |
JPH07508863A |
1995-09-28 |
|
|
7 |
Telephone communication apparatus and a digital method and apparatus for interfacing between the analog or hybrid telephone switching apparatus |
JP2001538428 |
2000-11-16 |
JP4326180B2 |
2009-09-02 |
ステルマン、ブルース |
|
8 |
Interface device for connecting base station to private branch exchange |
JP9772594 |
1994-05-11 |
JPH0775151A |
1995-03-17 |
ARUTOUUA FUEROZO; KURAUSU GAIBITSUTSU; YOAHIMU ENTORAA; HANSU YOAHIMU ADORUFUII |
PURPOSE: To attain an inexpensive base station(BS) by connecting a medium access control(MAC) module to a system interface circuit and connecting the interface circuit to a CPU in a private branch exchange through a system bus. CONSTITUTION: Two BSs are connected to the interface device. The interface device includes a wireless private exchange (WPABX), line interface for connecting respective BSs and a microprocessor provided with a transmission module, an MAC module, an adaptive storage part ADPCM, an echo control module, a system interface common to the connected BSs, and a clock module. Prior to the execution or reception of a call, a radio telephone receives information related to an environment and determines whether an access is possible or not. In order to synchronize the WPABX with the radio telephone, a radio channel outputs system information and BS identification. |
9 |
JPH06504889A - |
JP51341491 |
1991-08-01 |
JPH06504889A |
1994-06-02 |
|
|
10 |
Gel-filled electrical connector |
JP51033593 |
1992-12-03 |
JP3604383B2 |
2004-12-22 |
ジェラルド エル シミラク; ジャッキー トーマス; ミギュエル モラレス |
|
11 |
Telephone communication apparatus and a digital method and apparatus for interfacing between the analog or hybrid telephone switching apparatus |
JP2001538428 |
2000-11-16 |
JP2003515292A |
2003-04-22 |
ステルマン、ブルース |
(57)【要約】 アナログ電話、VoIP電話等の電話通信装置と、私設電話交換機(PBX)等のデジタル、アナログまたはハイブリッド電話装置との間でインタフェースを行う方法および装置に関する。 インタフェース装置は、異なる製造業者によって製造されたさまざまなPBXに使用することができ、その際に、PBXとそれに接続されたPBX互換電話との間での信号特性の違いは問題としない。 インタフェース装置は、電話通信装置とPBXとの間に接続される。 そのインタフェース装置と通信を行うために、電話通信装置およびPBXの特性が学習される。 それは、電話通信装置の各構成要素がアナログまたはデジタル装置であるか否か、さらに、電話通信装置がデジタルであるか否かを決定し、さらにPBXとPBX互換電話との間での通信を監視することによって実行される。 その後、そのインタフェース装置は、メモリにあらかじめ記憶されている複数のセットからオペレーションパラメータのセットを抽出することによって各々の適切なプロトコルに従って構成される。 |
12 |
JPH07501651A - |
JP51033593 |
1992-12-03 |
JPH07501651A |
1995-02-16 |
|
|
13 |
Subscriber circuit |
JP4314291 |
1991-03-08 |
JPH04280597A |
1992-10-06 |
ARAI MASANOBU; HIRAOKA TOSHIHIDE |
PURPOSE: To use a subscriber circuit for analog telephone set in common use with a subscriber circuit implementing duplex transmission of a digital signal by the echo canceller system.
CONSTITUTION: An analog circuit 1 generates a signal to be sent to a 2-wire subscriber line, receives a signal reached from the 2-wire subscriber line and revises a termination impedance by external control. An A/D converter 2 converts a signal received by the analog circuit 1 into a digital signal. A digital circuit 3 implements digital signal processing by the control of the firmware and selects calculation of balance network or calculation of CODEC filter and echo canceller calculation or equalizing discrimination calculation by external control. Since the selection is attained by external control through the revision of a software data, the revision of the service is very simply implemented and work installation cost is reduced.
COPYRIGHT: (C)1992,JPO&Japio |
14 |
Interface arrangement for connecting base stations to a private branch
exchange |
US621206 |
1996-03-22 |
US5799250A |
1998-08-25 |
Artur Veloso; Klaus Geywitz; Joachim Endler; Hans-Joachim Adolphi |
To also offer the possibility of mobile communication to branch exchange. The task of the invention is to present an interface arrangement between a private branch exchange and one or more base stations, at low cost for large numbers of existing base stations. To that effect, a microprocessor-controlled interface that maintains the DECT-Standard is offered, which shifts the majority of the functions from the one or more base stations to the branch exchange. A particularly cost-effective solution is obtained by making multiple use of component groups and dynamic channel assignment. |
15 |
DTMF signaling on four-wire switched 56 KBPS lines |
US540305 |
1995-10-06 |
US5748637A |
1998-05-05 |
Daniel M. Joffe; Donald C. Panek, Jr. |
Dual tone multi-frequency (DTMF) address signaling on four-wire switched 56 kilobits per second (Kbps) service lines is obtained by determining the proper byte boundary information. An iterative learning process is used with an existing digital switching network having a call progress indication capability. The learning process steps through each possible byte alignment until the call progress protocol indicates that a proper byte alignment has been achieved. Once a proper byte alignment has been determined, that byte alignment information is retained for subsequent use, thus avoiding the need to repeat the learning process. |
16 |
Automated call screening |
US226453 |
1994-04-12 |
US5724408A |
1998-03-03 |
Sanford J. Morganstein |
A method for facilitating call completions utilizing a call identification telephone number which is transmitted along with an incoming call. A user of the call processor of the invention can program a list of anticipated or preferred call identification telephone numbers, together with destinations to which it is desired to route the respective incoming calls. During an incoming call, the call processor matches the associated call identification telephone number with a preprogrammed number and thereby completes the call according to the programmed destination. |
17 |
Alarm and test system for a digital added main line |
US360104 |
1994-12-20 |
US5598455A |
1997-01-28 |
David C. Bliven; Anthony Vranicar; Philip B. Vail; Gerald L. Shimirak; Julian S. Mullaney |
A test system directed to apparatus for transmitting and receiving multiple telephone transmission signals over a single twisted pair. The system converts an analog signal from a local switching station to an 80 ksymbols/sec signal for transmission over a twisted pair by a line card. A remote terminal converts the 80 ksymbols/sec signal back into a conventional analog signal for use in conventional telephone, facsimile or other related equipment. The test equipment separately tests the entire system, the line card portion of the system, the remote terminal portion of the system, and the twisted pair. |
18 |
ISDN terminal adapter for access from analog signal equipment of
four-wire full duplex type to ISDN |
US924884 |
1992-08-06 |
US5341418A |
1994-08-23 |
Atsushi Yoshida |
In order to back up by an ISDN line two analog lines connected to MODEM of a four wire full duplex type for data transmission and reception, a terminal adapter is connected to a pair of back-up ports. Dial pulse signals delivered through the back-up ports are detected and converted into an ISDN telephone number. A D-channel processor performs the call connection by use of the D-channel signal having the ISDN telephone number and an identifier of a particular one of B-channels. An outgoing analog data from the MODEM through one of the back-up ports is A/D converted and then transmitted on the particular B-channel to the ISDN line. An incoming digital data on the particular B-channel signal received at the terminal adapter is D/A converted and is supplied to the MODEM through the other of the back-up ports. Thus, the back-up is performed by use of a single B-channel on the ISDN line. |
19 |
Subscriber line interface circuit for serving ISDN subscribers using
echo cancellers and POTS subscribers |
US847732 |
1992-03-09 |
US5255317A |
1993-10-19 |
Masanobu Arai; Yoshihide Hiraoka |
A subscriber line interface circuit includes a switched hybrid circuit operable during a POTS mode when the associated subscriber is using a POTS station and in an ISDN mode when the subscriber is using an ISDN station. The hybrid circuit includes a first amplifier circuit for coupling a signal at the two-wire port thereof to its four-wire transmit port, and a second amplifier circuit for coupling a signal at the four-wire receive port of the hybrid to the two-wire port. A high termination impedance is synthesized at the two-wire port during the POTS mode and a low termination impedance at the two-wire port during the ISDN mode. The signal from the four-wire transmit port is converted to a digital signal and applied to a digital signal processor which is configured differently according to DSP running programs respectively stored in first and second memories for operations during the POTS and ISDN modes. The DSP processes signals received from the hybrid's four-wire transmit port as well as from the telephone switching system according to the program supplied from the first or second memory and applies the process signals to the switching system and the four-wire receive port. |
20 |
Alarm and test system for a digital added main line |
US584325 |
1990-09-17 |
US5111497A |
1992-05-05 |
David C. Bliven; Anthony Vranicar; Philip B. Vail; Gerald L. Shimirak; Julian S. Mullaney |
A test system directed to apparatus for transmitting and receiving multiple telephone transmission signals over a single twisted pair. The system converts an analog signal from a local switching station to an 80 ksymbols/sec signal for transmission over a twisted pair by a line card. A remote terminal converts the 80 ksymbols/sec signal back into a conventional analog signal for use in conventional telephone, facsimile or other related equipment. The test equipment separately tests the entire system, the line card portion of the system, the remote terminal portion of the system, and the twisted pair. |