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Expired patents of:
Alcatel N.V.

Displaying 1 to 50 of 120 patents. (Retrieval took 1.326 seconds.)

 Patent TitleExpired:
1.Repeater having a bypass circuit for passing time division multiplex signals along even though some time slots are not reinjected2007-01-31
2.Resequencing device for a node of a cell switching system2007-01-17
3.Connection with amplifying optical fibers2007-01-03
4.Self-doped conductive polyanilines, and method of preparing them2006-12-06
5.Wavelength division multiplexer suitable for integrated optical systems2006-12-06
6.Apparatus for managing relationships between objects2006-12-01
7.Data transmission system for synchronously transmitting an auxiliary bitstream within a main bitstream2006-11-29
8.Optical frequency marking method and different frequency channel communication network using it2006-11-22
9.Facility and method for D channel packet switching2006-10-18
10.System for establishing a connection between private branch exchanges2006-10-11
11.High-density, highly reliable integrated circuit assembly2006-10-06
12.Wireless local area network having interface at each station which ignores messages not retransmitted by repeater2006-10-06
13.Method and circuit arrangement for detecting speech in a telephone terminal from a remote speaker2006-10-06
14.Device for the unadjusted coupling of a number of optical waveguides to a laser array2006-10-06
15.Service for transmitting a video signal on demand via an ISDN link2006-09-22
16.Method for measuring a signal transmission delay time, central station, terminal station and network to perform this method2006-09-15
17.Method and circuit arrangement for synchronizing frames in multicellular telecommunications systems2006-09-15
18.Optical coupling structure, method of realizing such a structure and related positioning means2006-09-15
19.Optical wavelength converter control method and device2006-09-06
20.Virtual private network for mobile subscribers2006-09-03
21.Space/time switching element having input/output circuits each separately switchable between two or more bit rates2006-08-30
22.Optical transmission system for cable television signals and video and telecommunications signals2006-08-11
23.Start/end point detection for word recognition2006-08-11
24.Optical receiver with extended dynamic range2006-08-02
25.Frame Synchronization method2006-07-28
26.Transmission method and transmitter for signals with a decoupled low level and at least one coupled high level for a telecommunication network including such a transmitter2006-07-28
27.Optical communications system employing fiber-optic amplifiers and control of the transmitter wavelength2006-07-26
28.Method of forming conductive paths on a substrate containing depressions2006-07-21
29.Adaptive burst multiplexing system using dynamic deadline computation2006-07-21
30.Communication system including allocating free signalling channels to individual substations having data to transmit2006-07-19
31.Optical time-division multiplexing2006-07-19
32.Frame synchronization method2006-07-07
33.Method and a network for transmitting messages in frequency channels2006-07-05
34.Apparatus for demultiplexing an optical digital signal2006-06-30
35.Transceiver arrangement using TDM to transmit assigned subcarrier waveforms2006-06-21
36.Method and system for sending data over a transmission link in variable length blocks in asynchronous transfer mode2006-06-21
37.Clock signal multiplex circuit2006-06-14
38.Organic material for non-linear optics2006-06-14
39.Parallel neural networks having one neural network providing evaluated data to another neural network2006-06-09
40.ATM exchange which resequencies the cells using their sequence numbers2006-06-07
41.Method and apparatus for relative positioning of a frequency, in particular an optical frequency2006-06-07
42.Optical switch2006-06-07
43.Wireless telephone service subscriber call routing method2006-06-07
44.Telephone subset arrangement2006-05-31
45.Low rate telemetry channel2006-05-26
46.Differential coder and decoder for pragmatic approach trellis-coded 8-PSK modulation2006-05-26
47.Communications method and network with frequency allocation2006-04-26
48.Optically controlled optical switching module, method of optically controlling an optical switching network, and optical switching network2006-04-14
49.Wireless telephone service access method2006-04-12
50.Method of coding 32-kb/s audio signals2006-04-12

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