HOST PROCESSOR ASSISTED FAST RE-SYNCHRONIZATION TECHNIQUES FOR DVB-H SYSTEMS
First Claim
1. A method of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver, said method comprising:
- performing a time division multiplexing (TDM) data burst transmission sequence on bits of data received by said DVB-H receiver;
performing a data bit re-synchronization sequence on said DVB-H receiver;
removing an on-chip timer and internal state registers in said DVB-H receiver; and
allowing said DVB-H receiver to power off in between receipt of data bursts.
31 Assignments
0 Petitions
Accused Products
Abstract
A system and method of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver, wherein the method comprises performing a time division multiplexing (TDM) data burst transmission sequence on bits of data received by the DVB-H receiver; performing a data bit re-synchronization sequence on the DVB-H receiver; removing an on-chip timer and internal state registers in the DVB-H receiver; and allowing the DVB-H receiver to power off in between receipt of data bursts. Preferably, the removing process reduces the time to perform the re-synchronization in the DVB-H receiver. Preferably, the data bit re-synchronization sequence comprises performing an automatic gain control (AGC) lock process; performing a model and guard detecting process; performing a frequency offset estimation process; performing a transmit parameter signaling (TPS) detection process; performing a timing and carrier loop lock process; and performing an equalizer delay process.
-
Citations
20 Claims
-
1. A method of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver, said method comprising:
-
performing a time division multiplexing (TDM) data burst transmission sequence on bits of data received by said DVB-H receiver; performing a data bit re-synchronization sequence on said DVB-H receiver; removing an on-chip timer and internal state registers in said DVB-H receiver; and allowing said DVB-H receiver to power off in between receipt of data bursts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver, said method comprising:
-
performing a time division multiplexing (TDM) data burst transmission sequence on bits of data received by said DVB-H receiver; performing a data bit re-synchronization sequence on said DVB-H receiver; removing an on-chip timer and internal state registers in said DVB-H receiver; and powering said DVB-H receiver off in between receipt of data bursts, wherein said method further comprises using a processor from a host data transmission device to use a counter to count down a period of time after which the host processor turns on a demodulator in said DVB-H receiver, wherein said method further comprises said host processor; (a) reading a value of said period of time from said DVB-H receiver; (b) turning off said demodulator; (c) initiating a timer counting said period of time; and (d) turning on said demodulator after said period of time being counted on said timer expires, wherein the removing reduces the time to perform said re-synchronization in said DVB-H receiver. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
-
20. A system of performing re-synchronization for a Digital Video Broadcasting over Handheld (DVB-H) receiver, comprising an on-chip timer and internal state registers, said system comprising:
-
a first logic unit adapted to perform a time division multiplexing (TDM) data burst transmission sequence on bits of data received by said DVB-H receiver; a second logic unit adapted to perform a data bit re-synchronization sequence on said DVB-H receiver; means for removing said on-chip timer and internal state registers in said DVB-H receiver; and a cycle clock adapted to power said DVB-H receiver off in between receipt of data bursts, wherein the removing means reduces the time to perform said re-synchronization in said DVB-H receiver.
-
Specification