Patents by Inventor Tze Wei Henry Wong

Tze Wei Henry Wong 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).

  • Handheld Electronic Processing Apparatus and an Energy Storage Accessory Fixable Thereto
    Publication number: 20080259536
    Abstract: A PDA (10) and an external battery pack (100) for fitting thereto. The battery pack (100) can be used to supplement an internal battery of the PDA (10). The PDA (10) has electrical contacts (40) that are for contacting electrical contacts (140) of the battery pack (100). The electrical contacts (40) of the PDA (10) are heat staked into material of a casing (20) of the PDA (10) to provide sealing therebetween. Electrical contact between the contacts (40) of the PDA (10) and a PCB (50) contained therein is provided by a respective helical spring (46) that abuts each contact (40) and the PCB (50). This helps to maintain the contact in the event that the PDA (10) is dropped. The electrical contacts (140) of the battery pack (100) are insert moulded in casing thereof to provide sealing therebetween.
    Type: Application
    Filed: October 10, 2005
    Publication date: October 23, 2008
    Inventors: Ah Hock Law, Tze Wei Henry Wong, Yen Jason Chin, Ji Woei Amos Foo
  • Ventilation For a Portable Electronic Device
    Publication number: 20080248841
    Abstract: A portable electronic device comprising a casing (5); a speaker (20) mounted adjacent an orifice (10) of the casing (5); an air permeable membrane (25) sealingly mounted to the cading (5) intermediate the orifice (10) and the speaker (20), so as to form a chamber (35) between the speaker (20) and the membrane (25); wherein the membrane (25) permits the ingress and egress of air (30), into the casing (5) through the orifice (10).
    Type: Application
    Filed: September 30, 2005
    Publication date: October 9, 2008
    Inventors: Ji Woei Amos Foo, Yen Jason Chin, Tze Wei Henry Wong, Ah Hock Law
  • Stylus Retention for an Industrial Portable Electronic Device
    Publication number: 20080236906
    Abstract: A portable electronic device comprising a stylus for use with a touch screen of said portable electronic device; a storage portion for storing the stylus; said stylus comprising a grip at a first end of the stylus; an elongate portion connected to the grip, said elongate portion having a contacting end for engaging the touch screen of the portable electronic device; said elongate portion adapted to slide into the storage portion of the portable electronic device in order to store said stylus with said device; said portable electronic device including an engagement means for maintaining the stylus in the stored position; said engagement means including at least one resiliently deformable portion a recess, and; a projection wherein; the stylus is maintained in position through engagement of the recess and projection and released by application of force to the at least one resiliently deformable portion sufficient to deform said portion so as to effect relative movement of the projection and recess and so permit
    Type: Application
    Filed: September 30, 2005
    Publication date: October 2, 2008
    Inventors: Ji Woei Amos Foo, Yen Jason Chin, Tze Wei Henry Wong, Ah Hock Law