Ascom Tech AG
27Patents
0Active
27Granted
33Portfolio score
Filing activity: Jun 15, 1990 → Apr 17, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5943020A | Flat three-dimensional antenna | Electricity | 110 | Expired |
| US5319486A | Transmission equipment with an optical transmission line | Physics | 89 | Expired |
| US5214703A | Device for the conversion of a digital block and use of same | Emerging Cross-Sectional Technologies | 84 | Expired |
| US5787077A | Dynamic connection mapping in wireless ATM systems | Electricity | 77 | Expired |
| US5170412A | Multiple access method | Electricity | 72 | Expired |
| US5508840A | Light modulator | Physics | 55 | Expired |
| US5181225A | Receiver for a DSSS signal | Electricity | 49 | Expired |
| US5701193A | Optical reflection modulator | Physics | 41 | Expired |
| US5907542A | Dynamic assignment of signalling virtual channels for wireless ATM systems | Electricity | 36 | Expired |
| US6014384A | Method for controlling data traffic in an ATM network | Electricity | 32 | Expired |
| US5220448A | Bit and frame synchronization unit for an access node of optical transmission equipment | Electricity | 31 | Expired |
| US5375118A | Apparatus for transmitting data between two parties belonging to at least one narrow band integrated services digital network | Electricity | 26 | Expired |
| US5436935A | Process for synchronizing a receiver switching circuit to a received signal containing a pn-code-spread data signal | Electricity | 19 | Expired |
| US5568478A | System for processing data structures in a node of a communication network | Electricity | 16 | Expired |
| US5463622A | Control unit for the common memory of an ATM node | Electricity | 14 | Expired |
| US5227907A | Method and device for decentralized transmission of data on a transmission line | Electricity | 13 | Expired |
| US5615230A | Process for transmitting digital signals which combines advantages of OQPSK and .pi./4-QPSK | Electricity | 11 | Expired |
| US5995572A | Method for measuring frequency shift in digital communications using synchronization sequence and channel step response | Electricity | 11 | Expired |
| US6243844A | Signal transmitter used in the transmission of data in a communication system | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5450231A | Modulator for a light beam | Physics | 7 | Expired |
| US5928376A | Process for receiving a signal coded and modulated according to an ETS-HIPERLAN standard | Electricity | 6 | Expired |
| US5926511A | Process for the coherent demodulation of a reception signal | Electricity | 6 | Expired |
| US6104723A | Network for packet-oriented data traffic | Electricity | 5 | Expired |
| US5768272A | NT2 unit for an ATM network | Electricity | 4 | Expired |
| US5319643A | Method for shortening a distributed queue | Electricity | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.