Patents by Inventor Loi Ying Liu
Loi Ying Liu 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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Publication number: 20240090583Abstract: A puff detection device (10) comprising a capacitive puff sensor (C2), a detection signal generator (140) for connection with the puff sensor (C2) and having an ESD diode (D2) at an input node (IN2), and a reference signal generator (120) which is configured to generate a train of reference pulses (CKI) having a reference frequency and comprises a reference capacitor (C1). The reference signal generator (120) includes a compensation device (D1) which is configured to provide a leakage current path at a charging node (IN1) of the reference capacitor (C1).Type: ApplicationFiled: September 23, 2021Publication date: March 21, 2024Inventor: Loi Ying Liu
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Publication number: 20230397670Abstract: A non-nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat a non-nicotine pre-vapor formulation, the non-nicotine pre-vapor formulation being devoid of nicotine and including at least one non-nicotine compound. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.Type: ApplicationFiled: August 28, 2023Publication date: December 14, 2023Applicant: Altria Client Services LLCInventors: Raymond W. LAU, Eric HAWES, Loi Ying LIU
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Publication number: 20230329349Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.Type: ApplicationFiled: May 12, 2023Publication date: October 19, 2023Applicant: Altria Client Services LLCInventor: Loi Ying Liu
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Patent number: 11771139Abstract: A non-nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat a non-nicotine pre-vapor formulation, the non-nicotine pre-vapor formulation being devoid of nicotine and including at least one non-nicotine compound. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.Type: GrantFiled: January 13, 2020Date of Patent: October 3, 2023Assignee: ALTRIA CLIENT SERVICES LLCInventors: Raymond W. Lau, Eric Hawes, Loi Ying Liu
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Publication number: 20230270179Abstract: A nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat nicotine pre-vapor formulation. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.Type: ApplicationFiled: May 4, 2023Publication date: August 31, 2023Applicant: Altria Client Services LLCInventors: Raymond W. LAU, Eric Hawes, Loi Ying Liu
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Publication number: 20230269831Abstract: A flavored vapor generator (100, 200, 300, 400) used for an electronic smoking apparatus (10) comprises a housing; a liquid retention material (155, 255) which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater (150, 350, 450) for heating the liquid retention material (155, 255) to generate flavored vapor; and a sensor (156, 356, 456) for monitoring soaking or wetness conditions of the liquid retention material (155, 255) and providing signals for determining whether the flavored liquid in the liquid retention material (155, 255) is exhausted or almost exhausted.Type: ApplicationFiled: May 1, 2023Publication date: August 24, 2023Applicant: Altria Client Services LLCInventor: Loi Ying LIU
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Patent number: 11684088Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.Type: GrantFiled: July 26, 2021Date of Patent: June 27, 2023Assignee: ALTRIA CLIENT SERVICES LLCInventor: Loi Ying Liu
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Patent number: 11678407Abstract: A flavored vapor generator (100, 200, 300, 400) used for an electronic smoking apparatus (10) comprises a housing; a liquid retention material (155, 255) which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater (150, 350, 450) for heating the liquid retention material (155, 255) to generate flavored vapor; and a sensor (156, 356, 456) for monitoring soaking or wetness conditions of the liquid retention material (155, 255) and providing signals for determining whether the flavored liquid in the liquid retention material (155, 255) is exhausted or almost exhausted.Type: GrantFiled: May 26, 2020Date of Patent: June 13, 2023Assignee: Altria Client Services LLCInventor: Loi Ying Liu
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Patent number: 11666100Abstract: A nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat nicotine pre-vapor formulation. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.Type: GrantFiled: January 13, 2020Date of Patent: June 6, 2023Assignee: ALTRIA CLIENT SERVICES LLCInventors: Raymond W. Lau, Eric Hawes, Loi Ying Liu
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Publication number: 20230043467Abstract: A control device for controlling operation of a vaping apparatus. The control device comprises control circuitry to control activation of the vaping source, measurement circuitry to obtain a temperature-dependent parameter of the vaping source, and memory circuitry for data storage. The control device is configured to determine the ambient temperature, to obtain the parameter at the ambient temperature as an initial parameter, to set and store a target parameter for stopping activation of the vaping source, and to stop activation of the vaping source when the target parameter has been reached.Type: ApplicationFiled: October 15, 2021Publication date: February 9, 2023Inventor: Loi Ying Liu
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Publication number: 20210345680Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.Type: ApplicationFiled: July 26, 2021Publication date: November 11, 2021Applicant: Altria Client Services LLCInventor: Loi Ying LIU
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Patent number: 11103011Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.Type: GrantFiled: January 13, 2020Date of Patent: August 31, 2021Assignee: Altria Client Services LLCInventor: Loi Ying Liu
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Publication number: 20210212381Abstract: A non-nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat a non-nicotine pre-vapor formulation, the non-nicotine pre-vapor formulation being devoid of nicotine and including at least one non-nicotine compound. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.Type: ApplicationFiled: January 13, 2020Publication date: July 15, 2021Applicant: Altria Client Services LLCInventors: Raymond W. LAU, Eric Hawes, Loi Ying Liu
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Publication number: 20210212380Abstract: A nicotine e-vaping device includes a heater, a power control circuit, and a memory module. The heater element is configured to heat nicotine pre-vapor formulation. The power control circuit is coupled to the heater element through a wire. The power control circuit is configured to apply a pulse width modulated power signal to the heater element through the wire, and to receive information over the wire. The memory module is configured to detect a plurality of pulses in the pulse width modulated power signal, record information based on the detected plurality of pulses, and output the recorded information to the power control circuit via the wire.Type: ApplicationFiled: January 13, 2020Publication date: July 15, 2021Applicant: Altria Client Services LLCInventors: Raymond W. LAU, Eric HAWES, Loi Ying LIU
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Publication number: 20200329769Abstract: A flavored vapor generator (100, 200, 300, 400) used for an electronic smoking apparatus (10) comprises a housing; a liquid retention material (155, 255) which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater (150, 350, 450) for heating the liquid retention material (155, 255) to generate flavored vapor; and a sensor (156, 356, 456) for monitoring soaking or wetness conditions of the liquid retention material (155, 255) and providing signals for determining whether the flavored liquid in the liquid retention material (155, 255) is exhausted or almost exhausted.Type: ApplicationFiled: May 26, 2020Publication date: October 22, 2020Applicant: Altria Client Services LLCInventor: Loi Ying Liu
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Patent number: 10694782Abstract: A flavored vapor generator (100, 200, 300, 400) used for an electronic smoking apparatus (10) comprises a housing; a liquid retention material (155, 255) which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater (150, 350, 450) for heating the liquid retention material (155, 255) to generate flavored vapor; and a sensor (156, 356, 456) for monitoring soaking or wetness conditions of the liquid retention material (155, 255) and providing signals for determining whether the flavored liquid in the liquid retention material (155, 255) is exhausted or almost exhausted.Type: GrantFiled: July 30, 2014Date of Patent: June 30, 2020Assignee: Altria Client Services LLCInventor: Loi Ying Liu
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Publication number: 20200187557Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.Type: ApplicationFiled: January 13, 2020Publication date: June 18, 2020Applicant: Altria Client Services LLCInventor: Loi Ying LIU
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Patent number: 10568363Abstract: An electronic smoke apparatus comprising an inhale sensor, a smoke source containing vapor-able smoke flavored substances, an electric heater for heating up the smoke flavored substances, and a power management controller to control power supply to operate the heater; wherein the power management controller is to adaptively supply operating power to the heater according to characteristics of a smoking inhaling event detected at said inhale sensor.Type: GrantFiled: March 26, 2019Date of Patent: February 25, 2020Assignee: Altria Client Services LLCInventor: Loi Ying Liu
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Publication number: 20190387804Abstract: An electronic smoke comprises a puff detection sub-assembly module. The puff detection sub-assembly comprises a first conductive surface, a second conductive surface and an insulated ring spacer separating the first and the second conductive surfaces at an effective separation distance. The first conductive surface, the second conductive surface and the insulated ring spacer are housed inside a metallic can. The first conductive surface is electrically connected to the metal can by a first conductive ring which is disposed between the first conductive surface and a ceiling portion of the metal can. The second conductive surface is electrically connected to an output terminal through a second conductive ring, the second conductive ring elevating the puff detection sub-assembly above a floor portion of the metal can and urging the first conductive ring against a ceiling portion of the metal can.Type: ApplicationFiled: September 4, 2019Publication date: December 26, 2019Applicant: Altria Client Services LLCInventor: LOI YING LIU
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Patent number: 10420374Abstract: An electronic smoke comprises a puff detection sub-assembly module. The puff detection sub-assembly comprises a first conductive surface, a second conductive surface and an insulated ring spacer separating the first and the second conductive surfaces at an effective separation distance. The first conductive surface, the second conductive surface and the insulated ring spacer are housed inside a metallic can. The first conductive surface is electrically connected to the metal can by a first conductive ring which is disposed between the first conductive surface and a ceiling portion of the metal can. The second conductive surface is electrically connected to an output terminal through a second conductive ring, the second conductive ring elevating the puff detection sub-assembly above a floor portion of the metal can and urging the first conductive ring against a ceiling portion of the metal can.Type: GrantFiled: July 7, 2015Date of Patent: September 24, 2019Assignee: Altria Client Services LLCInventor: Loi Ying Liu