# US 2008/0304595 A1 · DSP workload distribution in a power line carrier system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0304595 A1 - Document ID: US20080304595A1 - Status: Published application - Kind: A1 - Application number: 12/134,858 - Filed: 2008-06-06 - Published: 2008-12-11 - Earliest claimed: 2007-06-06 - Assignees: Hunt Technologies, Inc. - Inventors: Stuart Haug; Chad Wolter; Damian Bonicatto; Verne Olson; Robert Zeppetelle - Web page: https://patentgrep.com/patent/US20080304595A1 ## CPC - H04B 3/542: {the information being in digital form} - G06F 13/1657: {Access to multiple memories} - H04B 2203/5433: Remote metering - H04B 2203/5466: using three phases conductors - H04B: TRANSMISSION - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Disclosed are various embodiments for dividing workload in a digital signal processing system. In one embodiment, the system includes at least one analog-to-digital converter configured to receive a three phase analog waveform and a digital waveform. The system can also include a first DSP configured to interface with an external computer and a second DSP configured to receive the digital waveform and isolate a specified frequency range. The system can also include a plurality of DSP's configured to extract specified channels from the specified frequency range and output the extracted channel data. ## Claims ### Claim 1 A digital signal processing system, comprising: at least one analog-to-digital converter configured to receive a three phase analog waveform and output at least one digital waveform; a first digital signal processor (DSP) configured to interface with an external computer; a second DSP configured to receive the at least one digital waveform and isolate a specified frequency range; a plurality of DSP's configured to extract specified channels from the specified frequency range and output the extracted channel data; and an arbiter configured to arbitrate data transfers among the first DSP, the second DSP and the plurality of DSP's; wherein: the second DSP is configured to combine the at least one waveform into one digital waveform and perform high-pass and low-pass filtering of the at least one waveform; the three phase analog waveform comprises a time offset three phase waveform having a frequency substantially similar to a power distribution system frequency, the power distribution system frequency substantially either 50 Hz or 60 Hz; and the specified channels including approximately 2-3 mHz of bandwidth and corresponding to at least one endpoint in a power distribution system and the extracted channel data corresponds to data received from an endpoint in the power distribution system. ### Claim 2 A digital signal processing system, comprising: at least one analog-to-digital converter configured to receive a three phase analog waveform and output at least one digital waveform; a first digital signal processor (DSP) configured to interface with an external computer; a second DSP configured to receive the at least one digital waveform and isolate a specified frequency range; a plurality of DSP's configured to extract specified channels from the specified frequency range and output the extracted channel data; and an arbiter configured to arbitrate data transfers among the first DSP, the second DSP and the plurality of DSP's. ### Claim 3 (depends on 2) The system of claim 2, wherein the second DSP is configured to combine the at least one waveform into one digital waveform. ### Claim 4 (depends on 2) The system of claim 2, wherein the second DSP is configured to perform high-pass and low-pass filtering of the at least one digital waveform. ### Claim 5 (depends on 2) The system of claim 2, further comprising at least one sensor configured to capture each of three phases of the three phase analog waveform. ### Claim 6 (depends on 2) The system of claim 2, wherein the three phase analog waveform comprises a time offset three phase waveform having a frequency substantially similar to a power distribution system frequency. ### Claim 7 (depends on 6) The system of claim 6, wherein the power distribution system frequency is one of 50 Hz and 60 Hz. ### Claim 8 (depends on 7) The system of claim 7, wherein the specified channels include approximately 2-3 mHz. ### Claim 9 (depends on 2) The digital signal processing system of claim 2, wherein the specified channels correspond to at least one endpoint in a power distribution system and the extracted channel data corresponds to data received from an endpoint in the power distribution system. ### Claim 10 (depends on 2) The digital signal processing system of claim 2, wherein the first DSP is configured to receive the extracted channel data and transmit the extracted channel data to the external computer. ### Claim 11 (depends on 2) The digital signal processing system of claim 2, wherein the external computer is configured to issue commands to the first DSP that include at least one of: configuration data and executable code. ### Claim 12 (depends on 11) The digital signal processing system of claim 11, wherein the first DSP is configured to distribute commands from the external computer to the second DSP and the plurality of DSP's. ### Claim 13 A method of distributing workload in a digital signal processing system, comprising: receiving a three phase analog waveform; converting the three phase analog waveform into at least one digital waveform; isolating a specified frequency range from the at least one digital waveform in a first DSP; extracting specified channels from the specified frequency range in a plurality of DSP's and outputting extracted channel data; transmitting the extracted channel data from a second DSP to an external computer; and arbitrating data transfers among the first DSP, the second DSP and the plurality of DSP's in an arbitrator. ### Claim 14 (depends on 13) The method of claim 13, wherein the step of isolating a specified frequency range further comprises performing high-pass filtering and low-pass filtering on the at least one digital waveform in the first DSP. ### Claim 15 (depends on 13) The method of claim 13, wherein the three phase analog waveform comprises a time offset three phase waveform having a frequency substantially similar to a power distribution system frequency. ### Claim 16 (depends on 15) The method of claim 15, wherein the power distribution system frequency is one of 50 Hz and 60 Hz. ### Claim 17 (depends on 16) The method of claim 16, wherein the specified channels include approximately 2-3 mHz. ### Claim 18 (depends on 13) The method of claim 13, wherein the specified channels correspond to at least one endpoint in a power distribution system and extracted channel data corresponds to data received from the at least one endpoint in the power distribution system. ### Claim 19 (depends on 13) The method of claim 13, further comprising receiving commands from the external computer to the second DSP, wherein the commands include at least one of: configuration data and executable code. ### Claim 20 (depends on 19) The method of claim 19, further comprising the step of distributing commands from the external computer to the first DSP and the plurality of DSP's.