Patents by Inventor Jeffrey Schulz
Jeffrey Schulz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230140547Abstract: A system includes a programmable logic fabric core of an integrated circuit device and an IO interface communicatively coupled to the programmable logic fabric core. The IO interface includes multiple IO banks to implement a memory channel. Each IO bank includes a memory controller to control memory accesses of a memory device over the memory channel and multiple physical layer and IOs circuits to provide connections between the memory controller and the memory device. The respective memory controller may receive only a portion of data to be sent over the memory channel or multiple memory controllers may each receive all data to be sent over the memory channel.Type: ApplicationFiled: December 30, 2022Publication date: May 4, 2023Inventors: Terence Magee, Jeffrey Schulz, Arun Patel
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Publication number: 20230118912Abstract: A memory interface circuit includes first and second memory controller circuits that asynchronously receive requests for memory accesses to first and second storage circuits. The memory interface circuit also includes first and second clock gate circuits that disable and then reenable first and second clock signals in response to a clock enable signal. The first and the second memory controller circuits perform the memory accesses to the first and the second storage circuits synchronously in response to the first and the second clock signals that have been reenabled by the first and the second clock gate circuits.Type: ApplicationFiled: December 19, 2022Publication date: April 20, 2023Applicant: Intel CorporationInventors: Jeffrey Schulz, Terence Magee
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Publication number: 20230123826Abstract: Systems or methods of the present disclosure may provide a programmable logic fabric and a memory controller communicatively coupled to the programmable logic fabric. The systems or methods also include a physical layer and IO circuit coupled to the programmable logic fabric via the memory controller and a FIFO to receive read data from a memory device coupled to the physical layer and IO circuit. Furthermore, the FIFO is closer to the memory controller than to the physical layer and IO circuit.Type: ApplicationFiled: December 20, 2022Publication date: April 20, 2023Inventors: Terence Magee, Jeffrey Schulz
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Publication number: 20220405453Abstract: Systems or methods of the present disclosure may provide a programmable logic device including a network-on-chip (NoC) to facilitate data transfer between one or more main intellectual property components (main IP) and one or more secondary intellectual property components (secondary IP). To reduce or prevent excessive congestion on the NoC, the NoC may include one or more traffic throttlers that may receive feedback from a data buffer, a main bridge, or both and adjust data injection rate based on the feedback. Additionally, the NoC may include a data mapper to enable data transfer to be remapped from a first destination to a second destination if congestion is detected at the first destination.Type: ApplicationFiled: June 30, 2022Publication date: December 22, 2022Inventors: Rahul Pal, Ashish Gupta, Navid Azizi, Jeffrey Schulz, Yin Chong Hew, Thuyet Ngo, George Chong Hean Ooi, Vikrant Kapila, Kok Kee Looi
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Patent number: 11101930Abstract: A programmable integrated circuit may be provided with a memory interface for communicating with an external memory over a serial communications path. To accommodate a variety of different memory interface protocols while satisfying low-latency performance criteria, part of the memory interface may be formed from programmable logic and part of the memory interface may be formed from hardwired circuitry. The programmable logic of the memory interface may be used to implement packet formation logic that creates packets that include empty fields for sequence number information, acknowledgement information, and cyclic redundancy check information. The hardwired circuitry of the memory interface may be used to insert a sequence number, an acknowledgement, and cyclic redundancy check information into the empty fields.Type: GrantFiled: October 25, 2019Date of Patent: August 24, 2021Assignee: Altera CorporationInventor: Jeffrey Schulz
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Publication number: 20200059318Abstract: A programmable integrated circuit may be provided with a memory interface for communicating with an external memory over a serial communications path. To accommodate a variety of different memory interface protocols while satisfying low-latency performance criteria, part of the memory interface may be formed from programmable logic and part of the memory interface may be formed from hardwired circuitry. The programmable logic of the memory interface may be used to implement packet formation logic that creates packets that include empty fields for sequence number information, acknowledgement information, and cyclic redundancy check information. The hardwired circuitry of the memory interface may be used to insert a sequence number, an acknowledgement, and cyclic redundancy check information into the empty fields.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Inventor: Jeffrey Schulz
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Patent number: 10491333Abstract: A programmable integrated circuit may be provided with a memory interface for communicating with an external memory over a serial communications path. To accommodate a variety of different memory interface protocols while satisfying low-latency performance criteria, part of the memory interface may be formed from programmable logic and part of the memory interface may be formed from hardwired circuitry. The programmable logic of the memory interface may be used to implement packet formation logic that creates packets that include empty fields for sequence number information, acknowledgement information, and cyclic redundancy check information. The hardwired circuitry of the memory interface may be used to insert a sequence number, an acknowledgement, and cyclic redundancy check information into the empty fields.Type: GrantFiled: July 13, 2017Date of Patent: November 26, 2019Assignee: Altera CorporationInventor: Jeffrey Schulz
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Publication number: 20170310340Abstract: A programmable integrated circuit may be provided with a memory interface for communicating with an external memory over a serial communications path. To accommodate a variety of different memory interface protocols while satisfying low-latency performance criteria, part of the memory interface may be formed from programmable logic and part of the memory interface may be formed from hardwired circuitry. The programmable logic of the memory interface may be used to implement packet formation logic that creates packets that include empty fields for sequence number information, acknowledgement information, and cyclic redundancy check information. The hardwired circuitry of the memory interface may be used to insert a sequence number, an acknowledgement, and cyclic redundancy check information into the empty fields.Type: ApplicationFiled: July 13, 2017Publication date: October 26, 2017Inventor: Jeffrey Schulz
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Patent number: 9735778Abstract: Input-output (IO) circuitry for optimizing power management on an integrated circuit is disclosed. The IO circuitry includes monitoring circuitry and a multiplexer circuit that is controlled by the monitoring circuitry. The monitoring circuitry determines whether majority of the bits of an IO signal are transitioning from a first logical state to a second logical state. When a number of bit transitions of the IO signal exceeds a predetermined bit transition threshold, the monitoring circuitry may send a monitoring circuitry output to the multiplexer circuit to selectively couple an output signal to either the IO signal or an inverted IO signal. The IO circuitry further includes an additional multiplexer that receives the monitoring circuitry output and a clock signal. The additional multiplexer selects an additional output signal from the monitoring circuitry output and the clock signal based on a control signal that indicates a power-savings operation.Type: GrantFiled: August 20, 2014Date of Patent: August 15, 2017Inventor: Jeffrey Schulz
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Patent number: 9712186Abstract: A programmable integrated circuit may be provided with a memory interface for communicating with an external memory over a serial communications path. To accommodate a variety of different memory interface protocols while satisfying low-latency performance criteria, part of the memory interface may be formed from programmable logic and part of the memory interface may be formed from hardwired circuitry. The programmable logic of the memory interface may be used to implement packet formation logic that creates packets that include empty fields for sequence number information, acknowledgement information, and cyclic redundancy check information. The hardwired circuitry of the memory interface may be used to insert a sequence number, an acknowledgement, and cyclic redundancy check information into the empty fields.Type: GrantFiled: April 18, 2014Date of Patent: July 18, 2017Assignee: Altera CorporationInventor: Jeffrey Schulz
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Patent number: 9558131Abstract: An IC that includes a first memory controller, a second memory controller, and a first bonding circuit coupled to the first memory controller, where the first bonding circuit is a hard logic bonding circuit and is operable to coordinate memory control functions of the first memory controller and the second memory controller. In one implementation, the first memory controller is an N bits wide memory controller, the second memory controller is an M bits wide memory controller, and the first bonding circuit is operable to coordinate the memory control functions of the first memory controller and the second memory controller such that the first and second memory controllers together function as an N+M bits wide memory controller, where N and M are positive integers.Type: GrantFiled: June 20, 2011Date of Patent: January 31, 2017Assignee: Altera CorporationInventors: Jeffrey Schulz, Chiakang Sung, Michael H. M. Chu
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Patent number: 9424073Abstract: Techniques and mechanisms handle transactions between various components of a memory controller. For example, a memory controller may include a component implemented in configurable logic and another component implemented in hard logic.Type: GrantFiled: June 5, 2014Date of Patent: August 23, 2016Assignee: Altera CorporationInventor: Jeffrey Schulz
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Patent number: 9343124Abstract: A method and system for operating a multi-port memory system are disclosed. A memory controller may service read requests by accessing requested data from an external memory and communicating it to the requesting memory ports for access by devices coupled to the memory ports. A shared memory of the memory controller may be used to temporarily store data if a buffer associated with a requesting device is full. To reduce the ability for a slower memory port to occupy the shared memory and cause faster memory ports to be underserviced, the memory controller may advantageously regulate or limit issuance of read requests by memory ports operating at slower clock frequencies. The memory ports may be regulated independently of one another based on at least one respective attribute of each memory port, at least one attribute of the external memory, etc.Type: GrantFiled: July 29, 2011Date of Patent: May 17, 2016Assignee: Altera CorporationInventors: Caroline Ssu-Min Chen, Jeffrey Schulz, Michael H. M. Chu, Ravish Kapasi
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Patent number: 9276582Abstract: A cross-point switch having stacked switching dies on a component die is disclosed. The cross point switch allows scalability by adding switching dies. The switching dies include ingress switches that are coupled to multiplexers to a middle stage switches. The inputs and outputs of the ingress switches are connected to the switching interface region via through silicon vias (TSVs). The outputs of the ingress switches are also coupled by TSVs to multiplexers for routing to middle stage switches on a switching die above. If the switching die is stacked on another switching die, the outputs of the ingress switches are coupled by TSVs to the multiplexers for routing to the middle stage switches of the switching die below. By adding switching dies, the switch is configurable to increase the number of ports as well as the width of the ports.Type: GrantFiled: July 6, 2015Date of Patent: March 1, 2016Assignee: Altera CorporationInventors: Jeffrey Schulz, Michael Hutton
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Patent number: 9244867Abstract: A programmable integrated circuit may have a memory controller that interfaces between master modules and system memory. The memory controller may receive memory access requests from the masters via ports that have predetermined bit widths. To provide the memory controller with adjustable port widths, a mapping interface may be provided that interfaces between master processing modules and the memory controller. The mapping interface may allocate port resources such as read data ports and write data ports of the memory controller to each master processing module. The mapping interface may assign a desirable number of read data ports and write data ports to each master to accommodate the requirements of that master. The mapping interface may assign a command port to each master that receives memory access requests from that master. The mapping interface may convey write acknowledgements in response to fulfilling write access requests.Type: GrantFiled: June 1, 2011Date of Patent: January 26, 2016Assignee: Altera CorporationInventors: Jeffrey Schulz, Ching-Chi Chang, Caroline Ssu-Min Chen
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Patent number: 9208109Abstract: A programmable integrated circuit may have a memory controller that interfaces between master modules and system memory. The memory controller may receive memory access requests from the masters via ports that have associated priority values and fulfill the memory access requests by configuring system memory to respond to the memory access requests. To dynamically modify the associated priority values while the memory controller receives and fulfills the memory access requests, a priority value update module may be provided that dynamically updates priority values for the memory controller ports. The priority value update module may provide the updated priority values with update registers that are updated based on an update signal and a system clock. The priority values may be provided by shift registers, memory mapped registers, or provided by masters along with each memory access request.Type: GrantFiled: June 1, 2011Date of Patent: December 8, 2015Assignee: Altera CorporationInventors: Michael H. M. Chu, Jeffrey Schulz, Chiakang Sung, Ravish Kapasi
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Publication number: 20150341037Abstract: A cross-point switch having stacked switching dies on a component die is disclosed. The cross point switch allows scalability by adding switching dies. The switching dies include ingress switches that are coupled to multiplexers to a middle stage switches. The inputs and outputs of the ingress switches are connected to the switching interface region via through silicon vias (TSVs). The outputs of the ingress switches are also coupled by TSVs to multiplexers for routing to middle stage switches on a switching die above. If the switching die is stacked on another switching die, the outputs of the ingress switches are coupled by TSVs to the multiplexers for routing to the middle stage switches of the switching die below. By adding switching dies, the switch is configurable to increase the number of ports as well as the width of the ports.Type: ApplicationFiled: July 6, 2015Publication date: November 26, 2015Inventors: Jeffrey Schulz, Michael Hutton
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Patent number: 9077338Abstract: A cross-point switch having stacked switching dies on a component die is disclosed. The cross point switch allows scalability by adding switching dies. The switching dies include ingress switches that are coupled to multiplexers to a middle stage switches. The inputs and outputs of the ingress switches are connected to the switching interface region via through silicon vias (TSVs). The outputs of the ingress switches are also coupled by TSVs to multiplexers for routing to middle stage switches on a switching die above. If the switching die is stacked on another switching die, the outputs of the ingress switches are coupled by TSVs to the multiplexers for routing to the middle stage switches of the switching die below. By adding switching dies, the switch is configurable to increase the number of ports as well as the width of the ports.Type: GrantFiled: May 20, 2014Date of Patent: July 7, 2015Assignee: ALTERA CORPORATIONInventors: Jeffrey Schulz, Michael Hutton
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Systems and methods for providing memory controllers with memory access request merging capabilities
Patent number: 9032162Abstract: An integrated circuit may include a memory controller serving as an interface between master processing modules and system memory. The master processing modules may provide memory access requests to the memory controller along with respective tag identifications. The memory controller may place the memory access requests in a queue for fulfillment. The memory controller may include a merging module that generates a memory access request to replace two or more memory access requests previously received from the master processing modules. The merging module may store information associated with the memory access requests that were merged and use the stored information to assign appropriate tag identifications to portions of data obtained from system memory when fulfilling the generated memory access request. The memory controller may include a verification module that can be used with test equipment to optimize the design of the master processing modules for improved memory access performance.Type: GrantFiled: August 12, 2011Date of Patent: May 12, 2015Assignee: Altera CorporationInventors: Ching-Chi Chang, Ravish Kapasi, Jeffrey Schulz, Michael H. M. Chu, Caroline Ssu-Min Chen, Chiakang Sung -
Patent number: 8930641Abstract: An integrated circuit may have a memory controller that interfaces between master processing modules and system memory. A scheduling module may be used to handle memory access requests received from multiple master modules. The scheduling module may arrange the received memory access requests in an order for fulfillment with system memory. A bypass module may be used to provide a low latency bypass path that allows memory access requests to bypass the scheduling module. The bypass module may include an eligibility detection module that identifies memory access requests eligible for scheduler bypassing, a port selection module that provides a low latency bypass path for the eligible memory access requests, multiplexing circuitry that selects between memory access requests provided from the low latency bypass path and from the output of the scheduling module, and a masking module that prevents redundant fulfillment of memory access requests.Type: GrantFiled: June 14, 2011Date of Patent: January 6, 2015Assignee: Altera CorporationInventors: Ravish Kapasi, Jeffrey Schulz, Ching-Chi Chang, Caroline Ssu-Min Chen