Patents by Inventor Fang-Ching Lee
Fang-Ching Lee 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: 8411882Abstract: An electronic device is provided. The electronic device includes a housing and an electro-acoustic transducer disposed on the inner surface of the housing. The electro-acoustic transducer includes an electret diaphragm, a conductive plate and at least one spacer. The electret diaphragm is positioned on the inner surface of the housing and has a film body and an electrode layer. The film body has static charges and the electrode layer is formed on the lower surface of the film body. The conductive plate has a plurality of openings and is stacked on the upper surface of the film body. The spacer is positioned between the electret diaphragm and the conductive plate to keep a predetermined distance therebetween.Type: GrantFiled: September 15, 2009Date of Patent: April 2, 2013Assignee: HTC CorporationInventors: Fang Ching Lee, Yi Tsung Cheng, Chih Chao Hsieh
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Patent number: 8379890Abstract: A capacitive electro-acoustic transducer includes a pair of input terminals, a pair of output terminals, an electrode plate, and a diaphragm. The pair of input terminals receives an audio signal, and the pair of output terminals outputs the audio signal, wherein at least one terminal of these terminals is a conductive magnet. The electrode plate has a first end and a second end electrically connected to a first input terminal of the pair of input terminals and a first output terminal of the pair of output terminals, respectively. The diaphragm is disposed on one side of the electrode plate and has a third end and a fourth end electrically connected to a second input terminal of the pair of input terminals and a second output terminal of the pair of output terminals, respectively.Type: GrantFiled: December 28, 2010Date of Patent: February 19, 2013Assignee: HTC CorporationInventors: Yien-Chun Kuo, Fang-Ching Lee, Cheng-Chieh Chuang
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Patent number: 8379882Abstract: An electronic device includes a capacitance electro-acoustic transducer and an audio driver. The audio driver is coupled to the capacitance electro-acoustic transducer. The audio driver includes a high-voltage amplifier for receiving an input audio signal and for transforming the input audio signal into an output audio signal to drive the capacitance electro-acoustic transducer, wherein an absolute voltage value of the input audio signal is smaller than an absolute voltage value of the output audio signal. The output bandwidth of the capacitance electro-acoustic transducer is controlled by the magnitude of the output current of the audio driver. The capacitance electro-acoustic transducer of the present invention can meet different bandwidth requirements and thus achieve saving power, which cannot be achieved by a traditional dynamic electro-acoustic transducer.Type: GrantFiled: June 14, 2009Date of Patent: February 19, 2013Assignee: HTC CorporationInventor: Fang-Ching Lee
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Patent number: 8369545Abstract: An electro-acoustic transducer according to the present invention is provided. The electro-acoustic transducer includes a conductive plate with a plurality of openings, an electret diaphragm and a fluorescent layer. The electret diaphragm is positioned on the conductive plate and has a film body and an electrode layer. The film body has static charges carried and the electrode layer is formed on the upper surface of the film body. The fluorescent layer is positioned between the lower surface of the film body and the conductive plate.Type: GrantFiled: December 7, 2009Date of Patent: February 5, 2013Assignee: HTC CorporationInventor: Fang Ching Lee
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Patent number: 8306247Abstract: The invention provides an electronic device and an electro-acoustic transducer thereof. The electronic device includes a main body and an electro-acoustic transducer carried by the main body. The electro-acoustic transducer includes a first electret diaphragm, a second electret diaphragm and a plate. The first electret diaphragm generates vibrations according to a first electrical signal and the second electret diaphragm generates vibrations according to a second electrical signal. The plate includes a plurality of holes formed thereon and is disposed between the first electret diaphragm and the second electret diaphragm. Additionally, the electronic device further includes a decorative layer formed on the first or the second electret diaphragm.Type: GrantFiled: July 30, 2009Date of Patent: November 6, 2012Assignee: HTC CorporationInventors: Fang-Ching Lee, Yi-Tsung Cheng
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Publication number: 20120230517Abstract: An electronic device is provided, including a conductive substrate, an electret diaphragm, a plurality of spacers, a first electrode, and two second electrodes. The conductive substrate has a plurality of openings. The spacers are disposed between the conductive substrate and the electret diaphragm to define an acoustic projecting portion and two acoustic receiving portions on the electret diaphragm. The first electrode is disposed on the acoustic projecting portion and coupled with the conductive substrate for generating an acoustic signal. The second electrodes are disposed on the acoustic receiving portions and coupled with the conductive substrate, wherein the acoustic receiving portions receive the acoustic signal and vibrate to vary an electrical field between the second electrodes and the conductive substrate.Type: ApplicationFiled: June 27, 2011Publication date: September 13, 2012Inventor: Fang-Ching LEE
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Patent number: 8262824Abstract: A method for manufacturing electret diaphragms is provided. First, a dielectric film is attached to a frame by an adhesive material and a fastening element grips the peripheral area of the dielectric film on the frame. Afterward, the dielectric film is subjected to a metal sputtering process to form a conductive material layer thereon. Finally, the dielectric film is subjected to a polarizing process thereby forming an electret diaphragm.Type: GrantFiled: October 23, 2009Date of Patent: September 11, 2012Assignee: HTC CorporationInventor: Fang Ching Lee
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Patent number: 8243965Abstract: An electro-acoustic transducer is disclosed. The electro-acoustic transducer includes an electret diaphragm, an orifice plate and a plurality of dividing structures. The dividing structures, disposed between the electret diaphragm and the orifice plate, are cross-shaped. Each of the dividing structures includes two extending portions intersecting with each other.Type: GrantFiled: April 13, 2009Date of Patent: August 14, 2012Assignee: HTC CorporationInventor: Fang-Ching Lee
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Publication number: 20110311082Abstract: A capacitive electro-acoustic transducer includes a pair of input terminals, a pair of output terminals, an electrode plate, and a diaphragm. The pair of input terminals receives an audio signal, and the pair of output terminals outputs the audio signal, wherein at least one terminal of these terminals is a conductive magnet. The electrode plate has a first end and a second end electrically connected to a first input terminal of the pair of input terminals and a first output terminal of the pair of output terminals, respectively. The diaphragm is disposed on one side of the electrode plate and has a third end and a fourth end electrically connected to a second input terminal of the pair of input terminals and a second output terminal of the pair of output terminals, respectively.Type: ApplicationFiled: December 28, 2010Publication date: December 22, 2011Inventors: Yien-Chun Kuo, Fang-Ching Lee, Cheng-Chieh Chuang
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Publication number: 20110158433Abstract: A speaker system includes a first speaker, a second speaker and a driving circuit. The first speaker and the second speaker are different types of speakers. The driving circuit drives the first speaker with a first driving voltage and a first driving current and drives the second speaker with a second driving voltage and a second driving current, wherein the first driving voltage is larger than the second driving voltage and the first driving current is smaller than the second driving current. The present disclosure further provides a speaker driving circuit.Type: ApplicationFiled: December 28, 2010Publication date: June 30, 2011Applicant: HTC CORPORATIONInventor: Fang Ching LEE
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Publication number: 20110088143Abstract: A hat with sound playing function includes a hat body, a brim extending from the hat body and at least one slim speaker. The brim has a supporting layer and a decorating layer covering a surface of the supporting layer. The at least one slim speaker is disposed between the supporting layer and the decorating layer.Type: ApplicationFiled: October 15, 2010Publication date: April 21, 2011Applicant: HTC CORPORATIONInventor: Fang Ching LEE
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Publication number: 20100166247Abstract: An electro-acoustic transducer according to the present invention is provided. The electro-acoustic transducer includes a conductive plate with a plurality of openings, an electret diaphragm and a fluorescent layer. The electret diaphragm is positioned on the conductive plate and has a film body and an electrode layer. The film body has static charges carried and the electrode layer is formed on the upper surface of the film body. The fluorescent layer is positioned between the lower surface of the film body and the conductive plate.Type: ApplicationFiled: December 7, 2009Publication date: July 1, 2010Applicant: HTC CORPORATIONInventor: Fang Ching LEE
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Publication number: 20100111335Abstract: An electronic device is provided. The electronic device includes a housing and an electro-acoustic transducer disposed on the inner surface of the housing. The electro-acoustic transducer includes an electret diaphragm, a conductive plate and at least one spacer. The electret diaphragm is positioned on the inner surface of the housing and has a film body and an electrode layer. The film body has static charges and the electrode layer is formed on the lower surface of the film body. The conductive plate has a plurality of openings and is stacked on the upper surface of the film body. The spacer is positioned between the electret diaphragm and the conductive plate to keep a predetermined distance therebetween.Type: ApplicationFiled: September 15, 2009Publication date: May 6, 2010Applicant: HTC CorporationInventors: Fang Ching Lee, Yi Tsung Cheng, Chih Chao Hsieh
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Publication number: 20100101703Abstract: A method for manufacturing electret diaphragms is provided. First, a dielectric film is attached to a frame by an adhesive material and a fastening element grips the peripheral area of the dielectric film on the frame. Afterward, the dielectric film is subjected to a metal sputtering process to form a conductive material layer thereon. Finally, the dielectric film is subjected to a polarizing process thereby forming an electret diaphragm.Type: ApplicationFiled: October 23, 2009Publication date: April 29, 2010Applicant: HTC CORPORATIONInventor: Fang Ching LEE
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Publication number: 20100092010Abstract: An electronic device includes a capacitance electro-acoustic transducer and an audio driver. The audio driver is coupled to the capacitance electro-acoustic transducer. The audio driver includes a high-voltage amplifier for receiving an input audio signal and for transforming the input audio signal into an output audio signal to drive the capacitance electro-acoustic transducer, wherein an absolute voltage value of the input audio signal is smaller than an absolute voltage value of the output audio signal. The output bandwidth of the capacitance electro-acoustic transducer is controlled by the magnitude of the output current of the audio driver. The capacitance electro-acoustic transducer of the present invention can meet different bandwidth requirements and thus achieve saving power, which cannot be achieved by a traditional dynamic electro-acoustic transducer.Type: ApplicationFiled: June 14, 2009Publication date: April 15, 2010Inventor: Fang-Ching Lee
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Publication number: 20100092012Abstract: An electro-acoustic transducer is disclosed. The electro-acoustic transducer includes an electret diaphragm, an orifice plate and a plurality of dividing structures. The dividing structures, disposed between the electret diaphragm and the orifice plate, are cross-shaped. Each of the dividing structures includes two extending portions intersecting with each other.Type: ApplicationFiled: April 13, 2009Publication date: April 15, 2010Inventor: Fang-Ching LEE
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Publication number: 20100092013Abstract: An electro-acoustic transducer is disclosed. The electro-acoustic transducer includes an electret diaphragm, an orifice plate and a plurality of dividing structures. Each of the dividing structures, disposed between the electret diaphragm and the orifice plate, includes at least one main portion, and the number of the main portion is a positive integer. When the number of the main portion is larger than one, the main portions are respectively connected to a center and extended radially from the center.Type: ApplicationFiled: October 13, 2009Publication date: April 15, 2010Inventor: Fang-Ching LEE
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Publication number: 20100027818Abstract: The invention provides an electronic device and an electro-acoustic transducer thereof. The electronic device includes a main body and an electro-acoustic transducer carried by the main body. The electro-acoustic transducer includes a first electret diaphragm, a second electret diaphragm and a plate. The first electret diaphragm generates vibrations according to a first electrical signal and the second electret diaphragm generates vibrations according to a second electrical signal. The plate includes a plurality of holes formed thereon and is disposed between the first electret diaphragm and the second electret diaphragm. Additionally, the electronic device further includes a decorative layer formed on the first or the second electret diaphragm.Type: ApplicationFiled: July 30, 2009Publication date: February 4, 2010Inventors: Fang-Ching Lee, Yi-Tsung Cheng
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Patent number: D602472Type: GrantFiled: October 22, 2008Date of Patent: October 20, 2009Assignee: HTC CorporationInventor: Fang-Ching Lee