Patents by Inventor Donald Stevenson
Donald Stevenson 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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Patent number: 12283923Abstract: Techniques for controlling the output of a power amplifier are disclosed. In one embodiment, the techniques may be realized as a system that includes a power amplifier and a controller coupled to the power amplifier to form a feedback loop. The power amplifier is enabled or disabled in response to a blanking signal. The controller includes an accumulator that stores an accumulated error of the feedback loop. The controller suspends operation of the accumulator when (1) a level of the input signal is below a first threshold for an amount of time that exceeds a second threshold, (2) the blanking signal indicates that the power amplifier is disabled, or (3) both. The controller resumes operation of the accumulator when (1) the level of the input signal is above the first threshold and (2) the blanking signal indicates that the power amplifier is enabled.Type: GrantFiled: January 31, 2022Date of Patent: April 22, 2025Assignee: Empower RF Systems, Inc.Inventors: Donald M. Wike, Steve Stevenson, Paulo Correa
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Patent number: 11979308Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: GrantFiled: October 24, 2022Date of Patent: May 7, 2024Assignee: ACCEDIAN NETWORKS INC.Inventors: Stephane St-Laurent, Donald Stevenson
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Publication number: 20230120691Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: ApplicationFiled: October 24, 2022Publication date: April 20, 2023Inventors: Stephane St-Laurent, Donald Stevenson
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Patent number: 11516108Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (PLD) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: GrantFiled: December 20, 2020Date of Patent: November 29, 2022Assignee: Accedian Networks Inc.Inventors: Stephane St-Laurent, Donald Stevenson
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Publication number: 20210111983Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (PLD) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: ApplicationFiled: December 20, 2020Publication date: April 15, 2021Inventors: Stephane St-Laurent, Donald Stevenson
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Patent number: 10924378Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: GrantFiled: May 30, 2019Date of Patent: February 16, 2021Assignee: Accedian Networks Inc.Inventors: Stephane St-Laurent, Donald Stevenson
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Patent number: 10419325Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: GrantFiled: July 11, 2018Date of Patent: September 17, 2019Assignee: Accedian Networks Inc.Inventors: Stephane St-Laurent, Donald Stevenson
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Publication number: 20190280958Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: ApplicationFiled: May 30, 2019Publication date: September 12, 2019Inventors: Stephane St-Laurent, Donald Stevenson
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Publication number: 20180324078Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: ApplicationFiled: July 11, 2018Publication date: November 8, 2018Inventors: Stephane St-Laurent, Donald Stevenson
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Patent number: 10038620Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: GrantFiled: April 21, 2017Date of Patent: July 31, 2018Assignee: Accedian Networks Inc.Inventors: Stephane St-Laurent, Donald Stevenson
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Publication number: 20170222911Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: ApplicationFiled: April 21, 2017Publication date: August 3, 2017Inventors: Stephane St-Laurent, Donald Stevenson
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Patent number: 9660896Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: GrantFiled: March 18, 2015Date of Patent: May 23, 2017Assignee: Accedian Networks Inc.Inventors: Stephane St-Laurent, Donald Stevenson
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Patent number: 9538700Abstract: A material spreader attached to and towed by an agricultural vehicle for spreading material such as organic material and fertilizers over a ground surface. The material spreader having a containment box and a material expeller, the expeller having rotating flails positioned along a substantially vertical axis with one or more sets of paddles swingably connected to the flails and the paddles are axially spaced apart along the flail above and below the material spreader floor a desired distance to enhance flow-through of rocks, manure and other organic material and fertilizers.Type: GrantFiled: November 16, 2010Date of Patent: January 10, 2017Assignee: Degelman Industries Ltd.Inventors: Donald Stevenson, Miles Evans, Scott R. Degelman, Trent Benko
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Publication number: 20160237264Abstract: The invention pertains generally to an improved polymer composition which contains at least one liquid polymeric polyphosphite additive containing no alkylphenols. Alkylphenol-free polymeric polyphosphites offer distinct advantages over conventional phosphite technology in polyolefin films. Polymeric polyphosphites offer improved performance in regards to the prevention of color formation during high temperature processing, NOx aging, and gamma irradiation.Type: ApplicationFiled: April 26, 2016Publication date: August 18, 2016Applicant: Dover Chemical CorporationInventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson, John T. Regula, Jacob J. Weingart
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Patent number: 9382201Abstract: A composition having a compound having the structure: wherein n is an integer greater than or equal to 1; wherein X is an alkyl moiety or aryl moiety; wherein X1 is an alkyl moiety or aryl moiety; wherein Y is an alkyl moiety or aryl moiety, having a carbon number that is greater than or equal to 0, and wherein if Y has a carbon number of 0, the compound has the structure:Type: GrantFiled: May 21, 2014Date of Patent: July 5, 2016Assignee: Dover Chemical CorporationInventors: Donald Stevenson, John Nussbaumer, Louis E. Bona
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Publication number: 20160072694Abstract: A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (LPDB) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect LPDBs arriving at the port during the predetermined time period; and determining whether a detected LPDB contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. The stored information related to the test instance may be deleted if an LPDB arriving at the port and containing information corresponding to the stored information is not detected within the predetermined time period.Type: ApplicationFiled: March 18, 2015Publication date: March 10, 2016Inventors: Stephane St-Laurent, Donald Stevenson
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Publication number: 20150203636Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.Type: ApplicationFiled: March 16, 2015Publication date: July 23, 2015Applicant: DOVER CHEMICAL CORPORATIONInventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson
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Patent number: 8981042Abstract: A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.Type: GrantFiled: June 19, 2013Date of Patent: March 17, 2015Assignee: Dover Chemical CorporationInventors: Michael R. Jakupca, Jacob M. Lance, Donald Stevenson
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Publication number: 20140350290Abstract: A composition having a compound having the structure: wherein n is an integer greater than or equal to 1; wherein X is an alkyl moiety or aryl moiety; wherein X1 is an alkyl moiety or aryl moiety; wherein Y is an alkyl moiety or aryl moiety, having a carbon number that is greater than or equal to 0, and wherein if Y has a carbon number of 0, the compound has the structure:Type: ApplicationFiled: May 21, 2014Publication date: November 27, 2014Inventors: Donald STEVENSON, John NUSSBAUMER, Louis E. BONA
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Publication number: 20140068165Abstract: A method is provided for exchanging large amounts of memory within an operating system containing consumer and producer threads located in a user space and a kernel space, by controlling ownership of a plurality of RAM banks shared by multiple processes or threads in a consumer-producer relationship. The method includes sharing at least two RAM banks between a consumer process or thread and a producer process or thread, thereby allowing memory to be exchanged between said consumer process or thread and said producer process or thread, and alternately assigning ownership of a shared RAM bank to either said consumer process or thread or said producer process or thread, thereby allowing said producer process or thread to insert data into said shared RAM bank and said consumer process or thread to access data from said shared RAM bank.Type: ApplicationFiled: September 6, 2012Publication date: March 6, 2014Applicant: Accedian Networks Inc.Inventors: Thierry DeCorte, Donald Stevenson