Alcatel Telspace
43Patents
0Active
43Granted
37Portfolio score
Filing activity: Aug 27, 1991 → Aug 6, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5550521A | Electrical ground connection between a coaxial connector and a microwave circuit bottom plate | Electricity | 129 | Expired |
| US5416803A | Process for digital transmission and direct conversion receiver | Electricity | 128 | Expired |
| US5760645A | Demodulator stage for direct demodulation of a phase quadrature modulated signal and receiver including a demodulator stage of this kind | Electricity | 106 | Expired |
| US5675585A | Method and system for interleaving and deinterleaving SDH frames | Electricity | 102 | Expired |
| US5307236A | Heatsink for contact with multiple electronic components mounted on a circuit board | Electricity | 46 | Expired |
| US5508884A | System for dissipating heat energy generated by an electronic component and sealed enclosure used in a system of this kind | Electricity | 38 | Expired |
| US5285482A | Timing recovery device for receiver installation using adaptive equalization and oversampling associated with differentially coherent demodulation | Electricity | 36 | Expired |
| US5943380A | Robust phase estimator and recoverer for digital signals affected in particular by phase jitter | Electricity | 34 | Expired |
| US5929703A | Method and device for modeling AM-AM and AM-PM characteristics of an amplifier, and corresponding predistortion method | Electricity | 32 | Expired |
| US6195396A | Encoding/decoding system using 16-QAM modulation encoded in multi-level blocks | Electricity | 27 | Expired |
| US6175600A | System for detecting the presence of a digital signal carrier wave, and a receiver including such a system | Electricity | 20 | Expired |
| US5875214A | Device for initializing a viterbi decoder in a receiver for signals transmitted in the form of bursts, corresponding receiver and corresponding initialization method | Electricity | 20 | Expired |
| US6108373A | Process and device for detecting loss of carrier recovery and of determining the Eb/No ratio of a digital transmission link | Electricity | 19 | Expired |
| US5732114A | Method of detecting reference symbols for a digital data receiver | Electricity | 16 | Expired |
| US5533050A | System for receiving a phase and amplitude modulated digital signal | Electricity | 15 | Expired |
| US5555547A | Convolutional coding and viterbi decoding system transparent to phase skips of .pi. and .pi./2, with applications in TDMA transmission | Electricity | 14 | Expired |
| US5195710A | Three-dimensional fixing device | Electricity | 13 | Expired |
| US5705958A | Apparatus for correcting quadrature error in a modulator and/or in a demodulator for a signal having a plurality of phase states, a corresponding transmitter, and a corresponding receiver | Electricity | 12 | Expired |
| US5663691A | Estimator for estimating an operating defect in a quadrature modulator, and a modulation stage using the estimator | Electricity | 12 | Expired |
| US5546423A | Spread spectrum digital transmission system using low-frequency pseudorandom encoding of the wanted information and spectrum spreading and compression method used in a system of this kind | Electricity | 11 | Expired |
| US5572553A | Digital apparatus for broadband carrier-recovery | Electricity | 10 | Expired |
| US5822384A | Search method for acquisition of time synchronization between a spreading sequence of a receiver and that of a transmitter | Electricity | 9 | Expired |
| US5901174A | Equalizer-combiner for diversity receiver, receiver incorporating same and corresponding diversity reception method | Electricity | 9 | Expired |
| US5548618A | Device for detecting BPSK modulated singular words suitable for a TDMA analog modem and detection method used therein | Electricity | 9 | Expired |
| US5537406A | Traffic station, method and system for transmitting data by satellite between telephone switching centers | Electricity | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.