Patents by Inventor James P. Coffin
James P. Coffin 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: 8255027Abstract: A physiological sensor has emitters configured to transmit optical radiation having multiple wavelengths in response to corresponding drive currents. A thermal mass is disposed proximate the emitters so as to stabilize a bulk temperature for the emitters. A temperature sensor is thermally coupled to the thermal mass. The temperature sensor provides a temperature sensor output responsive to the bulk temperature so that the wavelengths are determinable as a function of the drive currents and the bulk temperature.Type: GrantFiled: July 19, 2010Date of Patent: August 28, 2012Assignee: Cercacor Laboratories, Inc.Inventors: Ammar Al-Ali, Mohamed Diab, Marcelo Lamego, James P. Coffin, Yassir Abdul-Hafiz
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Publication number: 20110009719Abstract: A physiological sensor has emitters configured to transmit optical radiation having multiple wavelengths in response to corresponding drive currents. A thermal mass is disposed proximate the emitters so as to stabilize a bulk temperature for the emitters. A temperature sensor is thermally coupled to the thermal mass. The temperature sensor provides a temperature sensor output responsive to the bulk temperature so that the wavelengths are determinable as a function of the drive currents and the bulk temperature.Type: ApplicationFiled: July 19, 2010Publication date: January 13, 2011Applicant: GLT Acquisition CorpInventors: Ammar Al-Ali, Mohamed Diab, Marcelo Lamego, James P. Coffin, Yassir Abdul-Hafiz
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Patent number: 7761127Abstract: A physiological sensor has emitters configured to transmit optical radiation having multiple wavelengths in response to corresponding drive currents. A thermal mass is disposed proximate the emitters so as to stabilize a bulk temperature for the emitters. A temperature sensor is thermally coupled to the thermal mass. The temperature sensor provides a temperature sensor output responsive to the bulk temperature so that the wavelengths are determinable as a function of the drive currents and the bulk temperature.Type: GrantFiled: March 1, 2006Date of Patent: July 20, 2010Assignee: Masimo Laboratories, Inc.Inventors: Ammar Al-Ali, Mohamed Diab, Marcelo Lamego, James P. Coffin, Yassir Abdul-Hafiz
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Patent number: 7647083Abstract: A physiological sensor has intensity compensation introduced along an optical path from emission to detection so as to compensate for unequal tissue attenuation as a function of wavelength. The sensor has emitters configured to transmit optical radiation having multiple wavelengths into a tissue site. At least one detector is capable of receiving the optical radiation after tissue attenuation. An equalization is capable of compensating optical radiation intensity so as to account for differences in tissue attenuation across at least a portion of the multiple wavelengths.Type: GrantFiled: March 1, 2006Date of Patent: January 12, 2010Assignee: Masimo Laboratories, Inc.Inventors: Ammar Al-Ali, Mohamed Diab, Marcelo Lamego, James P. Coffin, Yassir Abdul-Hafiz
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Patent number: 7332784Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally non-protruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.Type: GrantFiled: June 27, 2006Date of Patent: February 19, 2008Assignee: Masimo CorporationInventors: Michael A. Mills, James P. Coffin, IV
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Patent number: 7067893Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally nonprotruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.Type: GrantFiled: January 3, 2003Date of Patent: June 27, 2006Assignee: Masimo CorporationInventors: Michael A. Mills, James P. Coffin, IV
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Patent number: 6830711Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally non-protruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.Type: GrantFiled: January 3, 2003Date of Patent: December 14, 2004Assignee: Masimo CorporationInventors: Michael A. Mills, James P. Coffin, IV
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Publication number: 20030212312Abstract: A low noise patient cable has a plurality of emitter wires configured to communicate a drive signal between a monitor and at least one emitter. A plurality of detector wires is also configured to communicate a physiological signal between a detector responsive to the emitter and the monitor. A polymer layer is disposed around, and adapted to conduct a triboelectric charge away from, the detector wires.Type: ApplicationFiled: December 19, 2002Publication date: November 13, 2003Inventors: James P. Coffin, John Schmidt, Yassir Abdul-Hafiz, Jose Quinones, Deshan L. Atapattu
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Publication number: 20030143297Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally non-protruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.Type: ApplicationFiled: January 3, 2003Publication date: July 31, 2003Inventors: Michael A. Mills, James P. Coffin
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Publication number: 20030132495Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally nonprotruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.Type: ApplicationFiled: January 3, 2003Publication date: July 17, 2003Inventors: Michael A. Mills, James P. Coffin
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Patent number: 6525386Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally non-protruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.Type: GrantFiled: March 10, 1998Date of Patent: February 25, 2003Assignee: Masimo CorporationInventors: Michael A. Mills, James P. Coffin, IV
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Patent number: 6184521Abstract: A photodiode has integrated shields for the rejection of noise-producing electromagnetic interference and ambient light. The electromagnetic shield forms a conductive matrix which covers the photodiode active area. The matrix is deposited as a metallization layer onto the photodiode and provides exposed portions of the active area for light detection. A pad is electrically connected to the shield to allow external termination of the shield. The ambient-light shield is in the form of a colored encapsulant surrounding the photodiode. The encapsulant provides a high-pass light transmission characteristic which passes signal light and rejects out-of-band ambient light. The photodiode is particularly advantageous for use in pulse oximetry probes.Type: GrantFiled: January 6, 1998Date of Patent: February 6, 2001Assignee: Masimo CorporationInventors: James P. Coffin, IV, Thomas J. Gerhardt, Michael A. Mills, Massi E. Kiani