| 6850737 |
Antenna direction finding in mobile phones |
Raul Bruzzone, Abdelwaheb Marzouki |
2005-02-01 |
| 6731242 |
Method of calculating the position of a mobile radio station based on shortest propagation time |
— |
2004-05-04 |
| 6677541 |
Keyboard and key and telephone apparatus with such a keyboard |
— |
2004-01-13 |
| 6510313 |
Wireless communication device |
— |
2003-01-21 |
| 6202932 |
contactless coupling between a host unit and a smart card |
— |
2001-03-20 |
| 6195559 |
Communication system, a primary radio station, a secondary radio station, and a communication method |
Kars-Michiel Hubert Lenssen |
2001-02-27 |
| 6182032 |
Terminal switching to a lower speech codec rate when in a non-acoustically coupled speech path communication mode |
— |
2001-01-30 |
| 6167237 |
Universal wireless communication system, a transmission protocol, a wireless communication station, and a radio base station |
— |
2000-12-26 |
| 6112061 |
Radio communication device |
— |
2000-08-29 |
| 6103417 |
Flat elementary electrochemical cell and precursor element |
— |
2000-08-15 |
| 6058261 |
RF channel simulator |
— |
2000-05-02 |
| 5991605 |
Method and circuit for creating a modulated signal in a transceiver |
— |
1999-11-23 |
| 5949267 |
Circuit arrangement for generating signals with different phases |
— |
1999-09-07 |
| 5923204 |
Two phase low energy signal processing using charge transfer capacitance |
Jose De Albuquerque Epifanio Da Franca, Carlos Mexia De Almeida De Azeredo Leme, Joao Paulo Zuna Bello, Pedro Antonio De Sousa Cardoso Lopes, Ricardo Dos Santos Reis |
1999-07-13 |
| 5831303 |
Field effect transistor utilizing the gate structure two-dimensionally |
— |
1998-11-03 |
| 5822366 |
Transceiver and method for generating and processing complex I/Q-signals |
— |
1998-10-13 |
| 5754541 |
Data transmission method, base station, and subscriber terminal |
Savo Glisic, Ilkka Keskitalo, Pentti Leppanen, Tero Ojanpera, Kari Rikkinen |
1998-05-19 |
| 5732108 |
Method and apparatus for producing a difference signal between two signal frequencies, and for detection of modulation |
Kari Kananen |
1998-03-24 |
| 5497116 |
Method and apparatus for processing signals |
— |
1996-03-05 |
| 5387874 |
Method and circuit for dynamic voltage intergration |
— |
1995-02-07 |
| 5325075 |
Method and circuit arrangement to generate a phase modulated or frequency modulated signal |
— |
1994-06-28 |
| 5285165 |
Noise elimination method |
Markku Renfors, Yrjo Neuvo, Jorma Makinen, Aarne H. K. Tenhunen |
1994-02-08 |
| 5270666 |
Method and circuitry for demodulation of angle modulated signals by measuring cycle time |
Timo Rahkonen, Juha Kostamovaara |
1993-12-14 |
| 5079520 |
Interpolating phase-locked loop frequency synthesizer |
— |
1992-01-07 |
| 4408170 |
Component with trimmable electric impedance |
Seppo Leppavuori |
1983-10-04 |
