Digital receiver and method for processing received signals
First Claim
1. A digital receiver for a burst-mode wireless communication system comprising:
- a radio frequency (RF) input stage for receiving an input signal;
an analogue-to-digital converter for converting said input signal from an analogue signal to a digital signal;
a switch couplable to said analogue-to-digital converter;
a first signal processor couplable to said switch and arranged to demodulate one or more signals modulated according to a first modulation process; and
a second signal processor couplable to said switch and arranged to demodulate one or more signals modulated according to a second modulation process, said switch being arranged to switch said digital signal between said first and second signal processors to recover signals from said first modulation process and/or said second modulation process.
1 Assignment
0 Petitions
Accused Products
Abstract
A digital receiver for a burst-mode wireless communication system, such as a Bluetooth system comprises a radio frequency input stage for receiving an input signal and an analogue-to-digital converter for converting the input signal from an analogue signal to a digital signal. A switch is coupled to the analogue-to-digital converter and a first signal processor is coupled to the switch and is arranged to demodulate signals modulated according to a first modulation process, such as a GFSK modulation process. A second signal processor is also coupled to the switch and is arranged to demodulate signals modulated according to a second modulation process, such as π/4DQPSK modulation process or an 8DPSK modulation process. The switch is arranged to switch the digital signal between the first and second signal processors to recover signals from the first and/or the second modulation process. A method for processing received signals in a burst-mode wireless communication system is also disclosed.
125 Citations
25 Claims
-
1. A digital receiver for a burst-mode wireless communication system comprising:
-
a radio frequency (RF) input stage for receiving an input signal;
an analogue-to-digital converter for converting said input signal from an analogue signal to a digital signal;
a switch couplable to said analogue-to-digital converter;
a first signal processor couplable to said switch and arranged to demodulate one or more signals modulated according to a first modulation process; and
a second signal processor couplable to said switch and arranged to demodulate one or more signals modulated according to a second modulation process, said switch being arranged to switch said digital signal between said first and second signal processors to recover signals from said first modulation process and/or said second modulation process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method for processing received signals in a burst-mode wireless communication system comprising:
-
receiving an input signal in a radio frequency (RF) input stage;
converting said input signal from an analogue signal to a digital signal;
switching said digital signal between a first signal processor and a second signal processor to recover signals from a first modulation process and/or a second modulation process. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
Specification