Dynamic memory allocation and sharing in electronic systems
First Claim
1. An electronic system, comprising:
- a central processing unit (CPU); and
a signal processing system configurable to process satellite signals in a satellite-based positioning system coupled to the CPU, the signal processing system comprisinga plurality of subsystems, including an input sample subsystem and at least one other subsystem, wherein the input sample subsystem receives satellite data and produces input data samples, and wherein the at least one other subsystem comprises a signal processing subsystem that produces coherent data, and a fast fourier transform (FFT) subsystem that processes the coherent data and produces noncoherent data;
a memory device configurable into a plurality of configurations, dependent upon an operational mode of the signal processing system, wherein the memory device is configurable into regions, wherein each region stores a type of data, and each region is accessed by at least one of the plurality of subsystems, and wherein at least one of the regions stores data words from the CPU that determine the configuration of the memory device.
3 Assignments
0 Petitions
Accused Products
Abstract
A method and system for dynamic memory allocation and sharing in electronic systems. Embodiments include multi-channel signal processing, including continuously receiving multiple channels, wherein each channel comprises a discrete signal, and processing the multiple channels in a signal processing component on a time-multiplexed basis. Processing the multiple channels includes configuring the signal processing component for one of a plurality of operational modes, including allocating a memory into areas for storage of types of data, wherein certain areas are accessed by certain signal processing subsystems in certain manners. Configuring includes configuring the signal processing component to operate in different modes concurrently for different channels.
-
Citations
52 Claims
-
1. An electronic system, comprising:
-
a central processing unit (CPU); and a signal processing system configurable to process satellite signals in a satellite-based positioning system coupled to the CPU, the signal processing system comprising a plurality of subsystems, including an input sample subsystem and at least one other subsystem, wherein the input sample subsystem receives satellite data and produces input data samples, and wherein the at least one other subsystem comprises a signal processing subsystem that produces coherent data, and a fast fourier transform (FFT) subsystem that processes the coherent data and produces noncoherent data; a memory device configurable into a plurality of configurations, dependent upon an operational mode of the signal processing system, wherein the memory device is configurable into regions, wherein each region stores a type of data, and each region is accessed by at least one of the plurality of subsystems, and wherein at least one of the regions stores data words from the CPU that determine the configuration of the memory device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for multi-channel signal processing, comprising:
-
continuously receiving a plurality of discrete signals; processing the plurality of discrete signals in a signal processing component on time-multiplexed basis including, configuring the signal processing component for one of a plurality of operational modes, including allocating a memory into areas for storage of types of data, wherein certain areas are accessed by certain signal processing subsystems, wherein configuring includes configuring the signal processing component to operate in different modes concurrently for different discrete signals; and continuously configuring the signal processing component based on evaluation of output of the signal processing component, wherein reconfiguring includes configuring the signal processing component to operate in different modes concurrently for different discrete signals. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. An electronic system comprising:
-
a processing means, a signal processing system configurable to process satellite signals in a satellite based positioning system coupled to the processing means, the signal processing system comprising, a plurality of signal processing means, including an input sample means and at least one other signal processing means wherein the input sample means receives satellite data and produces input data samples, and wherein the at least one other signal processing means comprises a first signal processing means that produces coherent data, and a second signal processing means that processes the coherent data and produces noncoherent data; a memory device configurable into a plurality of configurations, dependent upon an operational mode of the signal processing system, wherein the memory device is configurable into regions, wherein each region stores a type of data, and each region is accessed by particular signal processing means, and wherein at least one of the regions stores data words from the processing means that determine the configuration of the memory device. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
-
-
41. A machine readable medium having instructions stored thereon, which when executed, cause a signal processing method to be performed the method comprising;
-
continuously receiving multiple channels, wherein each channel comprises a discrete signal;
processing the multiple channels in a signal processing component on a time-multiplexed basis, including,configuring the signal processing component for one of a plurality of operational modes, including allocating a memory into areas for storage of types of data, wherein certain areas are accessed by certain signal processing subsystems, wherein configuring includes configuring the signal processing component to operate in different modes concurrently for different channels; and continuously reconfiguring the signal processing component based on evaluation of output of the signal processing component, wherein reconfiguring includes configuring the signal processing component to operate in different modes concurrently for different channels. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
-
Specification