Patents Assigned to Marshall Amplification PLC
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Patent number: 7888577Abstract: A musical instrument amplification system comprising a footswitch and a main amplification device, its control panel having a variety of controls, such as switches, sliders, dials and the like allowing the user to set a variety of parameters for amplification. A remote footswitch having several controls is connected to the front-panel, the controls may be assigned either to a set of specific amplification parameters, or to the control for a particular parameter, allowing the performer improved access to the amplifier controls whilst performing.Type: GrantFiled: October 8, 2007Date of Patent: February 15, 2011Assignee: Marshall Amplification PLCInventor: Santiago Alvarez
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Publication number: 20090217807Abstract: A musical instrument amplification system comprising a footswitch and a main amplification device, its control panel having a variety of controls, such as switches, sliders, dials and the like allowing the user to set a variety of parameters for amplification. A remote footswitch having several controls is connected to the front-panel, the controls may be assigned either to a set of specific amplification parameters, or to the control for a particular parameter, allowing the performer improved access to the amplifier controls whilst performing.Type: ApplicationFiled: October 8, 2007Publication date: September 3, 2009Applicant: MARSHALL AMPLIFICATION PLCInventor: Santiago Alvarez
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Patent number: 5467400Abstract: A solid state audio amplifier for connection with a loudspeaker cabinet or emulation thereof to provide amplification characteristics emulating in frequency response those of a valve audio amplifier driving a loudspeaker cabinet. The loudspeaker cabinet comprises a loudspeaker drive and its enclosure. The frequency response of the audio amplifier exhibits a low frequency resonant peak in gain representing the fundamental resonance of the loudspeaker cabinet and a monotonic increase in gain at higher frequency associated with the impedance provided voice coil inductance of the loudspeaker cabinet. The audio amplifier comprises an amplifier and gain control circuitry associated therewith. The amplifier comprises a differential amplifier and the gain control circuitry comprises a impedance network connected in feedback. The impedance network comprises a tuned circuit connected to create the low frequency resonant peak in gain and a reactance providing the increase in gain at higher frequency.Type: GrantFiled: January 18, 1994Date of Patent: November 14, 1995Assignee: Marshall Amplification PlcInventor: Bruce Keir
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Patent number: D679298Type: GrantFiled: May 3, 2012Date of Patent: April 2, 2013Assignee: Marshall Amplification PLCInventor: Andy Golding
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Patent number: D679744Type: GrantFiled: May 25, 2011Date of Patent: April 9, 2013Assignee: Marshall Amplification PLCInventor: Nick Hudson
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Patent number: D703261Type: GrantFiled: May 25, 2011Date of Patent: April 22, 2014Assignee: Marshall Amplification PLCInventor: Nick Hudson
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Patent number: D720390Type: GrantFiled: May 25, 2011Date of Patent: December 30, 2014Assignee: Marshall Amplification PLCInventor: Nick Hudson
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Patent number: D758479Type: GrantFiled: October 31, 2014Date of Patent: June 7, 2016Assignee: Marshall Amplification PLCInventor: Nick Hudson
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Patent number: D929361Type: GrantFiled: November 23, 2018Date of Patent: August 31, 2021Assignee: Marshall Amplification PLCInventors: Ebba Bringman, Kenny Wong
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Patent number: D929362Type: GrantFiled: November 23, 2018Date of Patent: August 31, 2021Assignee: Marshall Amplification PLCInventors: Ebba Bringman, Kenny Wong
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Patent number: D984414Type: GrantFiled: March 16, 2021Date of Patent: April 25, 2023Assignee: Marshall Amplification PLCInventor: Elin Öqvist
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Patent number: D987595Type: GrantFiled: March 19, 2021Date of Patent: May 30, 2023Assignee: Marshall Amplification PLCInventors: Andreas Enquist, Ebba Bringman
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Patent number: D997121Type: GrantFiled: September 9, 2021Date of Patent: August 29, 2023Assignee: Marshall Amplification PLCInventor: Ebba Bringman
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Patent number: D1010604Type: GrantFiled: April 28, 2021Date of Patent: January 9, 2024Assignee: Marshall Amplification PLCInventors: Jenny Lechner, Susanne Bryngelsson