Techniques for controlling operation of control loops in a receiver
First Claim
1. An apparatus, configured to:
- adjust a bias current of at least one analog circuit block in a receiver; and
modify operation by preventing an update of at least one control loop separate from both the at least one analog circuit block and control of the bias current during the adjustment of the bias current.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques for controlling operation of control loops in a receiver are described. The operation of at least one control loop is modified in conjunction with a change in operating state, which may correspond to a change in linearity state, gain state, operating frequency, antenna configuration, etc. A change in linearity state may occur when jammers are detected and may cause bias current of analog circuit blocks to be adjusted. The at least one control loop to be modified may include a DC loop, an AGC loop, etc. The operation of a control loop may be modified by disabling the control loop or changing its time constant prior to changing operating state, waiting a predetermined amount of time to allow the receiver to settle, and enabling the control loop or restoring its time constant after waiting the predetermined amount of time.
27 Citations
28 Claims
-
1. An apparatus, configured to:
-
adjust a bias current of at least one analog circuit block in a receiver; and modify operation by preventing an update of at least one control loop separate from both the at least one analog circuit block and control of the bias current during the adjustment of the bias current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method comprising:
-
adjusting a bias current of at least one analog circuit block in a receiver; and modifying operation by preventing an update of at least one control loop separate from both the at least one analog circuit block and control of the bias current during the adjustment of the bias current. - View Dependent Claims (17, 18)
-
-
19. An apparatus comprising:
-
means for adjusting a bias current of at least one analog circuit block in a receiver; and means for modifying operation by preventing an update of at least one control loop separate from both the at least one analog circuit block and control of the bias current during the adjustment of the bias current. - View Dependent Claims (20, 21)
-
-
22. An apparatus, configured to:
-
change an operating state of a receiver; and modify operation by preventing an update of at least one control loop separate from both the at least one analog circuit block and control of the bias current during the change in the operating state. - View Dependent Claims (23, 24, 25, 26, 27)
-
-
28. A wireless device, configured to:
-
detect for jammers in a received signal; change linearity state of a receiver based on results of the detection for jammers; disable a direct current (DC) loop prior to changing linearity state; disable an automatic gain control (AGC) loop prior to changing linearity state; enable the DC loop after changing linearity state; and enable the AGC loop after changing linearity state.
-
Specification