Patents Assigned to Astera Labs, Inc.
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Patent number: 12141027Abstract: A memory control component allocates a portion of an auxiliary signaling channel and corresponding memory storage, conventionally dedicated to error correction code (ECC) conveyance and storage, for conveyance of metadata and/or other types of component-level information—splitting the auxiliary channel between metadata and ECC conveyance/storage in proportions that obviate conventional metadata conveyance/storage via the primary data channel and thus maintaining full primary channel bandwidth/storage-capacity for user data.Type: GrantFiled: October 31, 2022Date of Patent: November 12, 2024Assignee: Astera Labs, Inc.Inventors: Anh T. Tran, Dhairya Bapodra, Nirav Ishwarbhai Patel
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Patent number: 12143288Abstract: A signaling-link retimer concatenates discontiguous leading and trailing portions of a precoded and scrambled symbol stream, shunting the trailing portion of the stream ahead of unneeded stream content to dynamically reduce the number of symbols queued between retimer input and output and thus reduce retimer transit latency.Type: GrantFiled: January 18, 2022Date of Patent: November 12, 2024Assignee: Astera Labs, Inc.Inventors: Casey Morrison, Enrique Musoll, Jitendra Mohan, Pulkit Khandelwal, Subbarao Arumilli, Vikas Khandelwal, Ken (Keqin) Han, Charan Enugala, Vivek Trivedi, Chi Feng
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Patent number: 12095480Abstract: A memory control component encodes over-capacity data into an error correction code generated for and stored in association with an application data block, inferentially recovering the over-capacity data during application data block read-back by comparing error syndromes generated in detection/correction operations for respective combinations of each possible value of the over-capacity data and the read-back application data block.Type: GrantFiled: June 15, 2023Date of Patent: September 17, 2024Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Anh T. Tran, Subbarao Arumilli, Chi Feng
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Patent number: 12067266Abstract: A total number V of virtual host-managed device memory (HDM) decoder configurations are generated for the same total number V of HDM memory regions attached to a non-host computing device. Each virtual HDM decoder configuration in the virtual HDM decoder configurations corresponds to a respective HDM memory region in the HDM memory regions. A proper subset of one or more virtual HDM decoder configurations is selected from among the virtual HDM decoder configurations to configure one or more physical HDM decoders of a total number P of the non-host computing device into one or more virtual HDM decoders. The one or more physical HDM decoders configured as one or more virtual HDM decoders are applied to translate a host physical address (HPA) received from a host computing device in a memory access transaction involving the host computing device and the non-host computing device.Type: GrantFiled: July 18, 2022Date of Patent: August 20, 2024Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Anh Thien Tran
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Patent number: 12061793Abstract: A decoding engine within an integrated-circuit (IC) component iteratively executes error detection/correction operations with respect to a sequence of input data volumes to generate a corresponding sequence of error syndrome values, the input data volumes each including a first block of data and corresponding error correction code retrieved from one or more external memory components together with a respective one of a plurality of q-bit data patterns. Selector circuitry within the decoding engine selects one of the plurality of q-bit data patterns to be an output q-bit value according to error-count differentiation indicated by the error syndrome values.Type: GrantFiled: August 15, 2022Date of Patent: August 13, 2024Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Anh T. Tran, Subbarao Arumilli, Chi Feng
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Patent number: 12032479Abstract: A memory control device implements split storage of user-data and metadata components of a compound write data word, outputting the user-data component via a memory control interface for storage within an external memory subsystem while separately storing the metadata component within a metadata cache implemented within the memory control device.Type: GrantFiled: August 10, 2022Date of Patent: July 9, 2024Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Subbarao Arumilli, Anh T. Tran
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Patent number: 12001333Abstract: Symbols are received, from a first computing device by a second computing device, across lanes of a communication link. A physical layer extracted HPA (or eHPA) is generated from the symbols while operations at a physical layer of a receiving (Rx) protocol stack of the second computing device are being performed. The eHPA is generated before other operations at other layers of the Rx protocol stack are finished. The eHPA is used to perform one or more operations for memory access before a normative message is formed by operations of the receiving protocol stack implemented in a communication interface of the second computing device.Type: GrantFiled: October 7, 2022Date of Patent: June 4, 2024Assignee: Astera Labs, Inc.Inventor: Enrique Musoll
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Patent number: 12003610Abstract: First and second clock signals are generated based on signal transitions within first and second streams of symbols, respectively, received within an integrated circuit component, the first and second clock signals having a time-varying phase offset with respect to one another. A first control circuit, operating in a first timing domain established by the first clock signal, generates first control information based on the first stream of symbols and forwards the first control information, via a domain crossing circuit that bridges the time-varying phase offset, to a second control circuit operating in a second timing domain. The second control circuit generates a third stream of symbols based on the first control information and on the second stream of symbols, and a transmit circuit outputs the third stream of symbols from the integrated circuit component synchronously with respect to the second clock signal.Type: GrantFiled: April 19, 2022Date of Patent: June 4, 2024Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Casey Morrison, Ken (Keqin) Han, Pulkit Khandelwal, Subbarao Arumilli
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Patent number: 11949629Abstract: A signaling link retimer injects flow-rate compensation transmissions into a synthesized symbol stream in coordination with flow-rate compensation transmissions detected within a received symbol stream, enabling the retimer to switch seamlessly between forwarding the received symbol stream and outputting the synthesized symbol stream.Type: GrantFiled: April 19, 2022Date of Patent: April 2, 2024Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Subbarao Arumilli, Ken (Keqin) Han, Pulkit Khandelwal, Casey Morrison
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Patent number: 11941436Abstract: An integrated-circuit retimer selectively logs information corresponding to mission-mode data, received and transmitted via counterpart high-bandwidth data interfaces, in real-time and accordance with contents of a logging control storage written by an external component during retimer run time.Type: GrantFiled: April 26, 2021Date of Patent: March 26, 2024Assignee: Astera Labs, Inc.Inventors: Ken (Keqin) Han, Casey Morrison, Charan Enugala, Pulkit Khandelwal, Vikas Khandelwal
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Patent number: 11853115Abstract: A low-latency signaling link retimer generates an output signal transmission synchronously with respect to a core clock signal alternately selected from two or more plesiochronous or mesochronous clock sources with switchover between or among the core-clock sources executed without shrinking, extending or otherwise disrupting the edge-to-edge core clock period or clock duty cycle.Type: GrantFiled: September 27, 2022Date of Patent: December 26, 2023Assignee: Astera Labs, Inc.Inventors: Jitendra Mohan, Subbarao Arumilli, Charan Enugala, Chi Feng, Ken (Keqin) Han, Pulkit Khandelwal, Vikas Khandelwal, Casey Morrison, Enrique Musoll, Vivek Trivedi
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Patent number: 11722152Abstract: A memory control component encodes over-capacity data into an error correction code generated for and stored in association with an application data block, inferentially recovering the over-capacity data during application data block read-back by comparing error syndromes generated in detection/correction operations for respective combinations of each possible value of the over-capacity data and the read-back application data block.Type: GrantFiled: November 23, 2021Date of Patent: August 8, 2023Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Anh T. Tran, Subbarao Arumilli, Chi Feng
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Patent number: 11487317Abstract: A low-latency signaling link retimer generates an output signal transmission synchronously with respect to a core clock signal alternately selected from two or more plesiochronous or mesochronous clock sources with switchover between or among the core-clock sources executed without shrinking, extending or otherwise disrupting the edge-to-edge core clock period or clock duty cycle.Type: GrantFiled: September 20, 2021Date of Patent: November 1, 2022Assignee: Astera Labs, Inc.Inventors: Jitendra Mohan, Subbarao Arumilli, Charan Enugala, Chi Feng, Ken (Keqin) Han, Pulkit Khandelwal, Vikas Khandelwal, Casey Morrison, Enrique Musoll, Vivek Trivedi
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Patent number: 11424905Abstract: First and second clock signals are generated based on signal transitions within first and second streams of symbols, respectively, received within an integrated circuit component, the first and second clock signals having a time-varying phase offset with respect to one another. A first control circuit, operating in a first timing domain established by the first clock signal, generates first control information based on the first stream of symbols and forwards the first control information, via a domain crossing circuit that bridges the time-varying phase offset, to a second control circuit operating in a second timing domain. The second control circuit generates a third stream of symbols based on the first control information and on the second stream of symbols, and a transmit circuit outputs the third stream of symbols from the integrated circuit component synchronously with respect to the second clock signal.Type: GrantFiled: April 10, 2021Date of Patent: August 23, 2022Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Casey Morrison, Ken (Keqin) Han, Pulkit Khandelwal, Subbarao Arumilli
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Patent number: 11349626Abstract: A signaling link retimer injects flow-rate compensation transmissions into a synthesized symbol stream in coordination with flow-rate compensation transmissions detected within a received symbol stream, enabling the retimer to switch seamlessly between forwarding the received symbol stream and outputting the synthesized symbol stream.Type: GrantFiled: July 8, 2020Date of Patent: May 31, 2022Assignee: Astera Labs, Inc.Inventors: Enrique Musoll, Subbarao Arumilli, Ken (Keqin) Han, Pulkit Khandelwal, Casey Morrison
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Patent number: 11327913Abstract: Groups of signal conductors within a configurable communication system are managed by respective, dedicated media controllers implement a configurable number of independent communication channels through coordinated action so that signal conductors need not be multiplexed to/from multiple controllers and no media controllers or input/output driver circuits therein need be disabled in any configuration.Type: GrantFiled: September 21, 2020Date of Patent: May 10, 2022Assignee: Astera Labs, Inc.Inventors: Casey Morrison, Charan Enugala, Chi Feng, Enrique Musoll, Jitendra Mohan, Ken (Keqin) Han, Pulkit Khandelwal, Subbarao Arumilli, Vikas Khandelwal, Vivek Trivedi
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Patent number: 11150687Abstract: A low-latency signaling link retimer generates an output signal transmission synchronously with respect to a core clock signal alternately selected from two or more plesiochronous or mesochronous clock sources with switchover between or among the core-clock sources executed without shrinking, extending or otherwise disrupting the edge-to-edge core clock period or clock duty cycle.Type: GrantFiled: July 10, 2020Date of Patent: October 19, 2021Assignee: Astera Labs, Inc.Inventors: Jitendra Mohan, Subbarao Arumilli, Charan Enugala, Chi Feng, Ken (Keqin) Han, Pulkit Khandelwal, Vikas Khandelwal, Casey Morrison, Enrique Musoll, Vivek Trivedi