Patents by Inventor Wai Yin Mung

Wai Yin Mung 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).

  • Publication number: 20210360351
    Abstract: The present invention belongs to the technical field of antennas and discloses an antenna line for audio and Bluetooth signals. By arranging an input radio frequency choke, the role of insulating a wireless signal from being transmitted to an audio line can be performed. By arranging an output radio frequency choke, the role of insulating the wireless signal from being transmitted to a loudspeaker can be performed. A bendable transmission line can be used as an earphone cable. An audio signal transmission line and a Bluetooth signal transmission line are mixed together, which reduces a PCB wiring space and makes PCB design simpler and smaller. When the audio signal is transmitted to a Bluetooth antenna or another set of wireless signals, the impedance value is very large, so the audio signal could not reach there and will go from an audio signal input port to the loudspeaker without loss.
    Type: Application
    Filed: February 15, 2019
    Publication date: November 18, 2021
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20210344101
    Abstract: The utility model belongs to the technical field of antennas, and discloses a probe-fed antenna for Bluetooth speakers, which comprises a casing, loudspeaker, a PCB, a bracket and an antenna. The bracket is fixed inside the said casing, and the loudspeaker is fixed in the middle of the bracket. The antenna, is fixed between the top of the loudspeaker and one end of the bracket. The PCB is fixed between the bottom of the loudspeaker and the other end of the bracket. The PCB in the utility model is placed on the bottom of the bracket, and the antenna is placed on the top of the bracket. In this way, the PCB and the antenna ere kept away from the loudspeaker, such that the product can achieve the smallest size and the best signal transmission/reception effect. At the same time, the antenna is placed on the top of the bracket. Generally, most casings are made of plastic, not metal because it will not affect the antenna effect. Such a design can change the antenna into a part of the metal casing.
    Type: Application
    Filed: February 15, 2019
    Publication date: November 4, 2021
    Inventors: Shun Ming YUEN, Wai Yin MUNG, Ka Ming WU
  • Publication number: 20210344108
    Abstract: The present invention discloses a broadband antenna composed of lines, comprising a top metal sheet, a bottom metal sheet, and a plurality of lines that are arranged equidistantly in parallel, and attached unto the top metal sheet. The broadband antenna proposed in the present invention is composed of a plurality of lines attached onto a metal sheet. Different antenna frequencies may be obtained by changing the length of the lines. In this way, antennas of lines with different lengths can be designed according to the characteristics of the short-range radio technology, and the matching application of several short-range radio technologies, such as Bluetooth, ZigBee and cellular communication, can be achieved.
    Type: Application
    Filed: August 29, 2018
    Publication date: November 4, 2021
    Inventors: Shunming YUEN, Wai Yin MUNG, Ka Ming WU
  • Publication number: 20210336344
    Abstract: The present invention discloses a patch antenna composed of several sets of bonding wires connected to each other. The bonding wires are combined into different antenna lengths, and are disposed in radiating slots on one side of the patch. The present invention adopts a mode in which bonding wires are directly combined into an antenna, and patch antennas with different combined bonding wires bear different frequencies. Therefore, in the production, the PCB structure can be designed first, and then the antenna frequency can be designed by product requirements, so that different wireless communications are satisfied, especially the use of millimeter wave radar antennas. Since the antenna is completely composed of bonding wires, when there is a signal input, the current flows from bottom to top in the bonding wires 1, resulting in a higher axial ratio. Furthermore, since the wavelength of high frequencies is short, the antenna of the present invention may be made very small in size.
    Type: Application
    Filed: August 29, 2018
    Publication date: October 28, 2021
    Inventors: Shunming YUEN, Wai Yin MUNG, Ka Ming WU
  • Publication number: 20210288675
    Abstract: The utility model discloses an adjustable multi-band planar antenna, which comprises a ground plane, a resonance branch A, and a resonance branch B. The three components are all disposed on the top surface of a PCB. The said resonance branch A and resonance branch B assume an ā€œLā€ shape. The planar antenna in the utility model comprises two resonance branches, which enables the antenna to support multiple bands and multiple systems (such as GSM, NB-IoT, GPS, WCDMA, LTE, Bluetooth). The antenna can perform frequency tuning in a high frequency band or a low frequency band, so that it obtains better transmission and reception effects at a specific frequency.
    Type: Application
    Filed: December 6, 2018
    Publication date: September 16, 2021
    Inventors: Shun Ming YUEN, Wai Yin MUNG, Ka Ming WU
  • Publication number: 20210227314
    Abstract: The application belongs to the field of earphone technology, and discloses a type of noise-reducing earphones with adjustable voice. An audio processor processes voice signals. After a digital signal processor (DSP) completes noise reduction, the signals return to the audio processor, where two signals are combined, through another signal wire. Then the signals are transmitted to a digital-to-analog converter (DAC) that transmits the signals to an acoustic amplifier, where the signals are transmitted to a speaker to realize the adjustment of voice.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 22, 2021
    Inventors: Shun Ming Yuen, Wai Yin Mung, Shui Shing Choi, Ka Ming Wu
  • Publication number: 20210227339
    Abstract: The application belongs to the technical field of hearing aids, and discloses a type of hearing aid with Bluetooth control. There are keys connected to the micro-control unit so that when a signal is generated for the micro-control unit, the micro-control unit connects the signal to a phone via an antenna on the upper part of the Bluetooth module. With low energy technology employed, the power consumption of the Bluetooth module is relatively low. The hearing aid itself can also be adjusted for different audio through Bluetooth, so that different users can make adjustments according to their needs.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 22, 2021
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20210227341
    Abstract: The application belongs to the field of earphone technology, and discloses an earphone with volume monitoring. If it is found that the external noise is louder than the noise detected by the right-channel microphone 1 and the left-channel microphone 1, the volume will be increased. The left-channel microphone 2 and the right-channel microphone 2 are used to monitor the volume increased by the user. If it exceeds the standard, the earphone will give a prompt. If the volume exceeds the standard, the micro-control unit will prompt the speaker, or immediately stop the volume or restore the volume to an appropriate level.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 22, 2021
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20210219914
    Abstract: The application belongs to the field of earphone technology, and discloses a type of monitoring earphones intended for autism spectrum disorder. The upper part of headband is fixed with an electroencephalogram signal sensor, and the two sides thereof are respectively secured with No. 1 buckle and No. 2 buckle, which are used to fix No. 1 No. 1 signal processor and No. 2 signal processor on the upper part of the headband. Once the user is found by the application to be not himself/herself, the earphone will play his/her favorite music with Bluetooth, serving the function of music therapy.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Patent number: 10978771
    Abstract: The present invention discloses a lumped circuit balance converter applied to double-sided parallel lines, comprising a radio frequency transceiver, a balance converter, a filter and a matching network. The filter is connected with the matching network through the balance transmission line. The balance converter comprises a second circuit block, a first circuit block, a third circuit block, a first port, a second port and a third port. A positive polarity of a signal is positioned at the top of the second port and the bottom of the third port. Balance signals are respectively fed to the converter at the top of the second port and the bottom of the third port, and the signals are combined in the first port. The present invention has simple structure and better effect when used, can be easily changed to different required performance, and has good applicability and strong practicability.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: April 13, 2021
    Assignee: Innovation Sound Technology Co., Ltd.
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20210098859
    Abstract: The present invention belongs to the field of communication technology and discloses a highly elastic antenna made of bonding wires, which comprises a base plate, a line matched transformer, bonding wires, a primary PCB, a secondary PCB and a line inlet. The upper part of the said base plate is provided with a line matched transformer, a bonding wire, a primary PCB and a secondary PCB, one end of the said primary PCB is connected to the line inlet, a line matched transformer is fixed on the upper part of the primary PCB, and the primary PCB is connected to the secondary PCB via bonding wires. In the present invention, bonding wires are employed as a component of antenna radiant elements. As a radiating antenna, the bonding wire may extend into the third dimensional space via its height, thus reducing the space occupied by the antenna on the PCB. One or more bonding wires may be used for different PCB antennas and the resonant frequency may be adjusted by the length or height of the bonding wire.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 1, 2021
    Inventors: Chee Kit YUEN, Wai Yin MUNG, Ka Ming WU
  • Patent number: 10749561
    Abstract: The utility model belongs to the technical field of headphones, and discloses a headphone transmitting and receiving signals through a feed plate antenna with an L-shaped probe, which comprises a wireless circuit board, a panel, a probe, a plate and a PCB. The bottom of the said PCB is provided with a wireless circuit board, the said PCB is electrically connected to the probe, the top of the said PCB is provided with a panel, and the other end of the said probe is electromagnetically coupled with the plate. The utility model may render different geometric shapes with respect to different designs, and its different characteristic designs may support multiple frequency bands, providing high directivity, so that the headphone product itself transmits and receives signals better. In addition, the antenna can be made part of the appearance, which enables the headphone product itself to transmit and receive signals better.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: August 18, 2020
    Assignee: ACOUSTIC INNOVATION (HUIZHOU) CO. LTD.
    Inventors: Chee Kit Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20200252732
    Abstract: A personalized earphone for people with auditory abnormality, includes a microphone, a preamplifier, an analogue-to-digital (A/D) converter, a Bluetooth wireless circuit, a Digital Signal Processing (DSP) module, a digital-to-analogue (D/A) converter, a post-amplifier and a loudspeaker. The microphone is arranged to pick up an ambient noise and deliver information about the ambient noise to the preamplifier, the preamplifier is arranged to convert the ambient noise to a digital signal and input the digital signal to the DSP module. The DSP module is arranged to internally generate a noise-reduction signal that is converted to an original noise, and convert the noise-reduction signal to an analogue signal that is amplified by the post-amplifier and delivered to the loudspeaker. The DSP module is connected with the Bluetooth wireless circuit.
    Type: Application
    Filed: August 17, 2018
    Publication date: August 6, 2020
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20200243941
    Abstract: Provided is a foldable broadband antenna. The antenna includes two thin metal sheets that are flexible, thus the broadband antenna is bendable and can conform to a planar or curved surface. Thus, the antenna can either installed on a PCB or installed on other substrate. By adjusting the length of the thin metal sheet, different operation frequencies of the antenna can be obtained. Thus, it is possible to design an antenna with different sizes according to specific requirements, thereby the broadband antenna according to embodiments of the disclosure can be used together with different radio techniques, such as GPS, Bluetooth, ZigBee, cellular communications and the like.
    Type: Application
    Filed: August 23, 2018
    Publication date: July 30, 2020
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20200076041
    Abstract: The present invention discloses a lumped circuit balance converter applied to double-sided parallel lines, comprising a radio frequency transceiver, a balance converter, a filter and a matching network. The filter is connected with the matching network through the balance transmission line. The balance converter comprises a second circuit block, a first circuit block, a third circuit block, a first port, a second port and a third port. A positive polarity of a signal is positioned at the top of the second port and the bottom of the third port. Balance signals are respectively fed to the converter at the top of the second port and the bottom of the third port, and the signals are combined in the first port. The present invention has simple structure and better effect when used, can be easily changed to different required performance, and has good applicability and strong practicability.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 5, 2020
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20190373353
    Abstract: The present invention discloses an earphone for charging transmission through an earphone metal headband. One end of a housing is connected with a connecting plate; a metal headband is fixed into the housing; one end of the metal headband is welded with a metal bracket; the other end of the metal bracket is welded to a PCB; the PCB is fixed into a shell; a loudspeaker is arranged in the shell; a wireless charging coil is fixed into the housing; and the wireless charging coil of the housing is electrically connected with a battery inside the housing through the PCB. The present invention is designed on the housing of the earphone; the metal bracket is used for transmitting current for charging. Because the current is transmitted through the metal bracket, the metal bracket becomes a part of the appearance, thereby avoiding reduction of charging input power caused by voltage decrease.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20190373350
    Abstract: The present invention discloses an earphone for transmitting and receiving signals through a metal bracket as an antenna, comprising a bracket. Both ends of the bracket are respectively fixed to a fixing frame; the upper part of the fixing frame is used for installing a first antenna and a second antenna; the other end of the first antenna and the second antenna penetrates through a housing, extends into the housing, and is welded to a PCB inside the housing. A loudspeaker is arranged in the housing. The loudspeaker is connected with the PCB. The present invention uses a retractable metal bracket of a traditional earphone as an antenna, thereby removing a traditional wireless earphone antenna hidden into a shell, and designs an earphone bracket as an antenna to become a part of the appearance, so that the earphone product can better complete transmission and reception.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Publication number: 20190364348
    Abstract: The present invention discloses an earphone with sealing process between a leather sheath and a loudspeaker cover with a soft rubber ring, comprising a leather sheath bracket. A soft rubber ring is arranged between the leather sheath bracket and a loudspeaker cover. A loudspeaker is fixed to an upper part of the loudspeaker cover. During assembly, the leather sheath is simply pressed and buckled towards the direction of the loudspeaker cover; and the soft rubber ring is clamped to deform to seal the matching between the leather sheath bracket and the loudspeaker cover, so that the sound from the loudspeaker in the earphone does not leak from a side surface. The method is stable in the sealing effect for a long time, has no risk of air leakage, is simple in operation, saves production and assembly man-hours, is easy in rework and repair and has no material scrapping.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 28, 2019
    Inventors: Shun Ming Yuen, Wai Yin Mung, Ka Ming Wu
  • Patent number: 8717117
    Abstract: Aspects describe a wideband active quasi-circulator that has the advantages of small size, lightweight, and compatibility with monolithic microwave integrated circuit (MMIC) technology. An active quasi-circulator is provided that comprises both a power amplifier and a low noise amplifier. The active quasi-circulator can operate over a wide frequency range with isolation or substantial isolation between a power amplifier and a low noise amplifier that is tunable with isolation or substantial isolation at any frequency within the wide frequency range. The provided quasi-circulator is suitable for use in mobile units in multi-band radio frequency communication systems, as well as in other configurations.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: May 6, 2014
    Assignee: City University of Hong Kong
    Inventors: Steve Wai Yin Mung, Wing Shing Chan
  • Publication number: 20120274425
    Abstract: Aspects describe a wideband active quasi-circulator that has the advantages of small size, lightweight, and compatibility with monolithic microwave integrated circuit (MMIC) technology. An active quasi-circulator is provided that comprises both a power amplifier and a low noise amplifier. The active quasi-circulator can operate over a wide frequency range with isolation or substantial isolation between a power amplifier and a low noise amplifier that is tunable with isolation or substantial isolation at any frequency within the wide frequency range. The provided quasi-circulator is suitable for use in mobile units in multi-band radio frequency communication systems, as well as in other configurations.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 1, 2012
    Applicant: CITY UNIVERSITY OF HONG KONG
    Inventors: Steve Wai Yin Mung, Wing Shing Chan