Method and apparatus for disturbance compensation of a direct conversion receiver in a full duplex transceiver
Номер патента: MY133724A
Опубликовано: 30-11-2007
Автор(ы): Leif Martin Hellmark
Принадлежит: Ericsson Telefon Ab L M
Опубликовано: 30-11-2007
Автор(ы): Leif Martin Hellmark
Принадлежит: Ericsson Telefon Ab L M
Реферат: TO ADDRESS THE PROBLEM ASSOCIATED WITH THE INTERFERENCE IN A RECEIVED SIGNAL OF A DIRECT CONVERSION RECEIVER (410) WITHIN A TRANSCEIVER (490), AN ERROR ESTIMATOR (400) IS EMPLOYED TO REDUCE ERRORS INDUCED ON THE BASEBAND OF THE RECEIVED SIGNAL. KNOWLEDGE THAT THE TRANSMITTER (450) WITHIN THE TRANSCEIVER IS THE STRONGEST INTERFERER CAN BE USED BY THE ERROR ESTIMATOR (400) TO SUBTRACT THE INTERFERENCE CAUSED BY TRANSMITTER FROM THE RECEIVED SIGNAL. ADDITIONALLY, THIS CAN BE ACHIEVED EVEN THOUGHT THE INTERFERENCE ON THE I AND Q CHANNELS OF THE RECEIVER IS NOT EQUAL.FIGURE 3
Method and apparatus for adjusting peak and valley acquisition rates of a signal received by a radio communication device
Номер патента: US5303416A. Автор: Daniel A. Morera. Владелец: Motorola Inc. Дата публикации: 1994-04-12.