Patents by Inventor Karl F. Mueller

Karl F. Mueller 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).

  • Patent number: 11082774
    Abstract: Methods and systems for verification of an environmental seal provided by an encapsulant coating of a bottom-ported MEMS microphone package. A purposeful acoustic leak is provided on an upper surface of a package housing (in the form of an additional acoustic port) and a sealing material is applied to an outer surface of the package housing. A properly applied encapsulant coating will completely seal the additional acoustic port on the upper surface of the package housing. However, the placement of the additional acoustic port on the upper surface of the package housing will have a significant, detectable effect on the frequency response of the microphone if it is not completely sealed by the encapsulant coating. Accordingly, the environmental seal provided by the encapsulant coating is verified by confirming, based on the acoustic frequency response testing, that the encapsulant coating has effectively sealed the additional acoustic port on the upper surface of the package housing.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 3, 2021
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Andrew P. Miehl, Deborah A. Gruenhagen, Geng Xiang Lee, Karl F. Mueller
  • Publication number: 20210195341
    Abstract: Methods and systems for verification of an environmental seal provided by an encapsulant coating of a bottom-ported MEMS microphone package. A purposeful acoustic leak is provided on an upper surface of a package housing (in the form of an additional acoustic port) and a sealing material is applied to an outer surface of the package housing. A properly applied encapsulant coating will completely seal the additional acoustic port on the upper surface of the package housing. However, the placement of the additional acoustic port on the upper surface of the package housing will have a significant, detectable effect on the frequency response of the microphone if it is not completely sealed by the encapsulant coating. Accordingly, the environmental seal provided by the encapsulant coating is verified by confirming, based on the acoustic frequency response testing, that the encapsulant coating has effectively sealed the additional acoustic port on the upper surface of the package housing.
    Type: Application
    Filed: December 23, 2019
    Publication date: June 24, 2021
    Inventors: ANDREW P. MIEHL, DEBORAH A. GRUENHAGEN, GENG XIANG LEE, KARL F. MUELLER
  • Patent number: 10818577
    Abstract: A microphone packaging assembly (100) provides a printed circuit board (pcb) (106) for coupling to a microphone device (102) having a bottom acoustic port (104). The pcb provides an acoustic port opening (108) which aligns with the bottom acoustic port (104) of the microphone device (102). A solder pad pattern (110) is disposed on the pcb (106). The solder pad pattern (110) is configured to provide both electrical connection (114) and an incomplete solder seal (116) having purposeful acoustic leak to the microphone device (102). A conformable coating (126) provides a seal to the purposeful acoustic leak. A single acoustic test can be performed to detect proper environmental protection and acoustic sealing of the packaged assembly (100).
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 27, 2020
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Andrew P Miehl, Kathryn Johnson, Deborah A Gruenhagen, Rammone Bartlett, Karl F Mueller, Ido Amit
  • Publication number: 20200203257
    Abstract: A microphone packaging assembly (100) provides a printed circuit board (pcb) (106) for coupling to a microphone device (102) having a bottom acoustic port (104). The pcb provides an acoustic port opening (108) which aligns with the bottom acoustic port (104) of the microphone device (102). A solder pad pattern (110) is disposed on the pcb (106). The solder pad pattern (110) is configured to provide both electrical connection (114) and an incomplete solder seal (116) having purposeful acoustic leak to the microphone device (102). A conformable coating (126) provides a seal to the purposeful acoustic leak. A single acoustic test can be performed to detect proper environmental protection and acoustic sealing of the packaged assembly (100).
    Type: Application
    Filed: December 19, 2018
    Publication date: June 25, 2020
    Inventors: ANDREW P. MIEHL, KATHRYN JOHNSON, DEBORAH A. GRUENHAGEN, RAMMONE BARTLETT, KARL F. MUELLER, IDO AMIT
  • Patent number: 9930435
    Abstract: A method and apparatus are described for providing an acoustically-resistive air-permeable venting structure within a sealed microphone acoustic cavity. A microphone is mounted on a printed circuit board and positioned within a housing. A water-resistant membrane seals the microphone from an exterior of the housing, and a active acoustic cavity establishes an acoustical connection between the water-resistant membrane and the microphone. An acoustically-resistive air-permeable venting structure is formed in the body of the printed circuit board and connects to the active acoustic cavity either directly or via a separate vent path. The venting structure provides a viscous dampening effect by venting an active acoustic cavity of the electronic device to the rest of the enclosure sealed by the water-resistant membrane.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 27, 2018
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Andrew P. Miehl, Deborah A. Gruenhagen, Gary A. Lee, David J. Meyer, Karl F. Mueller, John Kevin Arledge
  • Patent number: 9800965
    Abstract: A microphone porting and venting assembly (100) is formed of a remote support substrate (118) providing a (130) acoustically resistive element with dedicated venting cavities (132) along with an external baffle (220) providing acoustic channels (212, 214, 216) which further provide water drainage and external sound sampling points (222, 224, 226). The microphone porting and venting assembly (100) is well suited waterproof, noise cancelling microphone systems.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: October 24, 2017
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Andrew P. Miehl, Patrick S. Claeys, Deborah A. Gruenhagen, Karl F. Mueller, David M. Yeager, Jorge L. Garcia, Andrew A. Efanov
  • Patent number: 9648434
    Abstract: A microphone porting structure, comprises a substrate (312) having a bearing surface and a porting through-hole (344) formed therethough for aligning with a microphone port of a bottom ported microphone (334). The bearing surface provides an area against which to seal and the through-hole provides for acoustic path alignment for the audio ports of paired bottom ported microphones mounted to a printed circuit board.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: May 9, 2017
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Andrew P. Miehl, Patrick S. Claeys, Karl F. Mueller
  • Publication number: 20170111751
    Abstract: A microphone porting structure, comprises a substrate (312) having a bearing surface and a porting through-hole (344) formed therethough for aligning with a microphone port of a bottom ported microphone (334). The bearing surface provides an area against which to seal and the through-hole provides for acoustic path alignment for the audio ports of paired bottom ported microphones mounted to a printed circuit board.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 20, 2017
    Inventors: ANDREW P. MIEHL, PATRICK S. CLAEYS, KARL F. MUELLER
  • Publication number: 20170111720
    Abstract: A microphone porting and venting assembly (100) is formed of a remote support substrate (118) providing a (130) acoustically resistive element with dedicated venting cavities (132) along with an external baffle (220) providing acoustic channels (212, 214, 216) which further provide water drainage and external sound sampling points (222, 224, 226). The microphone porting and venting assembly (100) is well suited waterproof, noise cancelling microphone systems.
    Type: Application
    Filed: October 19, 2015
    Publication date: April 20, 2017
    Inventors: Andrew P. Miehl, Patrick S. Claeys, Deborah A. Gruenhagen, Karl F. Mueller, David M. Yeager, Jorge L. Garcia, Andrew A. Efanov
  • Publication number: 20170111721
    Abstract: A method and apparatus are described for providing an acoustically-resistive air-permeable venting structure within a sealed microphone acoustic cavity. A microphone is mounted on a printed circuit board and positioned within a housing. A water-resistant membrane seals the microphone from an exterior of the housing, and a active acoustic cavity establishes an acoustical connection between the water-resistant membrane and the microphone. An acoustically-resistive air-permeable venting structure is formed in the body of the printed circuit board and connects to the active acoustic cavity either directly or via a separate vent path. The venting structure provides a viscous dampening effect by venting an active acoustic cavity of the electronic device to the rest of the enclosure sealed by the water-resistant membrane.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 20, 2017
    Inventors: Andrew P. Miehl, Deborah A. Gruenhagen, Gary A. Lee, David J. Meyer, Karl F. Mueller, John Kevin Arledge
  • Patent number: 8682017
    Abstract: A device (300) and method (600) for equal audio porting is provided. The device can include a first side with at least one first audio port (182) providing a data communication aspect, a second side with at least one second audio port (184) providing an audio communication aspect, and a transducer (110) positioned between the first side and the second side. The transducer projects sound out of the at least one first audio port and the at least one second audio port such that a quality of the sound through the at least one first audio port and the at least one second audio port are substantially the same.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: March 25, 2014
    Assignee: Motorola Solutions, Inc.
    Inventors: Shlomo Gelbart, Deborah A. Gruenhagen, Karl F. Mueller
  • Patent number: 8320585
    Abstract: A dual-sided radio (100) for enhancing a user's experience is provided. The radio includes a primary transducer (110) on an audio-side of the radio that projects a primary sound, a secondary transducer (120) on a data-side of the radio that projects a mid-high frequency sound, a processor (160) that equalizes (200) audio to the primary transducer and the secondary transducer, and a communication module (130) that receives and transmits communication signals containing the audio. The secondary transducer supplements the primary sound with a mid-high frequency sound (404) to compensate for mid-high frequency loss of the primary sound due to diffraction (300).
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: November 27, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Deborah A. Gruenhagen, Javier Alfaro, Karl F. Mueller, David M. Yeager
  • Publication number: 20110228958
    Abstract: A device (300) and method (600) for equal audio porting is provided. The device can include a first side with at least one first audio port (182) providing a data communication aspect, a second side with at least one second audio port (184) providing an audio communication aspect, and a transducer (110) positioned between the first side and the second side. The transducer projects sound out of the at least one first audio port and the at least one second audio port such that a quality of the sound through the at least one first audio port and the at least one second audio port are substantially the same.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 22, 2011
    Applicant: MOTOROLA SOLUTIONS, INC.
    Inventors: Shlomo Gelbart, Deborah A. Gruenhagen, Karl F. Mueller
  • Patent number: 7933427
    Abstract: A device (300) and method (600) for equal audio porting is provided. The device can include a first side with at least one first audio port (182) providing a data communication aspect, a second side with at least one second audio port (184) providing an audio communication aspect, and a transducer (110) positioned between the first side and the second side. The transducer projects sound out of the at least one first audio port and the at least one second audio port such that a quality of the sound through the at least one first audio port and the at least one second audio port are substantially the same.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: April 26, 2011
    Assignee: Motorola Solutions, Inc.
    Inventors: Shlomo Gelbart, Deborah A. Gruenhagen, Karl F. Mueller
  • Patent number: 7801571
    Abstract: The invention concerns a mobile communications unit (100) having at least one transducer (120) that can broadcast audio through a direct port (110), at least one leak port (114) for leak tolerance of the unit, in which the leak port can have a first opening (116) and a multi-use opening (118). The multi-use opening can be coupled to the first opening of the leak port to complete a path for the leak port, and the multi-use opening can also receive a part of an accessory. As an example, the mobile unit can be a monolith mobile unit. As another example, the accessory can be a holster having a hook mechanism that fits within the multi-use opening and can secure the mobile communications unit to the holster.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: September 21, 2010
    Assignee: Motorola Mobility, Inc.
    Inventors: Joseph M. Friedman, David I. Blatt, Chun L. Chong, Shlomo Gelbart, Karl F. Mueller, Eric S. Penrod
  • Publication number: 20080192977
    Abstract: A dual-sided radio (100) for enhancing a user's experience is provided. The radio includes a primary transducer (110) on an audio-side of the radio that projects a primary sound, a secondary transducer (120) on a data-side of the radio that projects a mid-high frequency sound, a processor (160) that equalizes (200) audio to the primary transducer and the secondary transducer, and a communication module (130) that receives and transmits communication signals containing the audio. The secondary transducer supplements the primary sound with a mid-high frequency sound (404) to compensate for mid-high frequency loss of the primary sound due to diffraction (300).
    Type: Application
    Filed: February 8, 2007
    Publication date: August 14, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Deborah A. Gruenhagen, Javier Alfaro, Karl F. Mueller, David M. Yeager
  • Publication number: 20070297629
    Abstract: A device (300) and method (600) for equal audio porting is provided. The device can include a first side with at least one first audio port (182) providing a data communication aspect, a second side with at least one second audio port (184) providing an audio communication aspect, and a transducer (110) positioned between the first side and the second side. The transducer projects sound out of the at least one first audio port and the at least one second audio port such that a quality of the sound through the at least one first audio port and the at least one second audio port are substantially the same.
    Type: Application
    Filed: June 27, 2006
    Publication date: December 27, 2007
    Applicant: MOTOROLA, INC.
    Inventors: Shlomo Gelbart, Deborah A. Gruenhagen, Karl F. Mueller
  • Patent number: 7068782
    Abstract: A communications receiver earpiece, for example in a cellular handset, including a sound-generating device (210) located on an inner portion of a housing, a sound port (130) extending through the housing from the inner portion thereof and emerging from an outer portion of the housing. A sound-port cover (140) is disposed over the sound port (130) on the outer portion of the housing. A portion 144 of the sound-port cover extending outwardly of the sound port where the sound port emerges from the out portion of the housing.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: June 27, 2006
    Assignee: Motorola, Inc.
    Inventors: Karl F. Mueller, David M. Yeager
  • Publication number: 20040001589
    Abstract: A communications receiver earpiece, for example in a cellular handset, including a sound-generating device (210) located on an inner portion of a housing, a sound port (130) extending through the housing from the inner portion thereof and emerging from an outer portion of the housing. A sound-port cover (140) is disposed over the sound port (130) on the outer portion of the housing. A portion 144 of the sound-port cover extending outwardly of the sound port where the sound port emerges from the out portion of the housing.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 1, 2004
    Inventors: Karl F. Mueller, David M. Yeager
  • Publication number: 20030044002
    Abstract: A method for creating spatially resolved audio signals for a listener (18) that are representative of one or more callers (12, 14, 16). A digital data signal (13) that represents the individual caller's voice (12) contains an embedded tag (24) that is identifiable with the individual caller. The digital data signal is transmitted from a sending device at the caller's location to a receiving device (30) at the listener's location. At the listener's receiving device, the tag is used to associate each of the digital data signals with a head related transfer functions (32) that are resident in the receiving device by consulting a lookup table. The digital data streams are then convolved (34) with the associated head related transfer function to form binaural digital signals, which are ported to two or more acoustic transducers (36) to create analog audio signals that appear to emanate from different spatial locations around the listener.
    Type: Application
    Filed: August 28, 2001
    Publication date: March 6, 2003
    Inventors: David M. Yeager, Scott K. Isabelle, Karl F. Mueller, Sivakumar Muthuswamy, Xinyu Dou