Multiband receivers for millimeter wave devices

    公开(公告)号:US11228325B2

    公开(公告)日:2022-01-18

    申请号:US16833663

    申请日:2020-03-30

    摘要: We disclose multiband receivers for millimeter-wave devices, which may have reduced size and/or reduced power consumption. One multiband receiver comprises a first band path comprising a first passive mixer configured to receive a first input RF signal having a first frequency and to be driven by a first local oscillator signal having a frequency about ⅔ the first frequency; a second band path comprising a second passive mixer configured to receive a second input RF signal having a second frequency and to be driven by a second local oscillator signal having a frequency about ⅔ the second frequency; and a base band path comprising a third passive mixer configured to receive intermediate RF signals during a duty cycle and to be driven by a third local oscillator signal having a frequency about ⅓ the first frequency or about ⅓ the second frequency during the duty cycle.

    Mattress cover
    54.
    发明授权

    公开(公告)号:US11160390B2

    公开(公告)日:2021-11-02

    申请号:US16111989

    申请日:2018-08-24

    申请人: Sinomax USA Inc.

    IPC分类号: A47C31/10 A47C27/14

    摘要: A mattress cover, comprising a top layer; a first side layer comprising a first air-impermeable portion, a first air-permeable portion, a first air-impermeable flap, and first affixing apparatus, wherein the first affixing apparatus is configured to reversibly affix the first air-impermeable flap over the first air-permeable portion; a second side layer comprising a second air-impermeable portion, a second air-permeable portion, a second air-impermeable flap, and second affixing apparatus, wherein the second affixing apparatus is configured to reversibly affix the second air-impermeable flap over the second air-permeable portion; a head layer; and a foot layer.

    Multiband receivers for millimeter wave devices

    公开(公告)号:US10944437B2

    公开(公告)日:2021-03-09

    申请号:US15967281

    申请日:2018-04-30

    摘要: We disclose multiband receivers for millimeter-wave devices, which may have reduced size and/or reduced power consumption. One multiband receiver comprises a first band path comprising a first passive mixer configured to receive a first input RF signal having a first frequency and to be driven by a first local oscillator signal having a frequency about ⅔ the first frequency; a second band path comprising a second passive mixer configured to receive a second input RF signal having a second frequency and to be driven by a second local oscillator signal having a frequency about ⅔ the second frequency; and a base band path comprising a third passive mixer configured to receive intermediate RF signals during a duty cycle and to be driven by a third local oscillator signal having a frequency about ⅓ the first frequency or about ⅓ the second frequency during the duty cycle.

    Mouthpiece with whistling mechanism

    公开(公告)号:US10714068B2

    公开(公告)日:2020-07-14

    申请号:US15226764

    申请日:2016-08-02

    申请人: David Hopson

    发明人: David Hopson

    IPC分类号: A63H5/00 G10K5/00 A01M31/00

    摘要: A whistle mouthpiece is provided that has a whistle mechanism that comprises one or more openings that may contain one or more reeds or other frequency producing mechanisms that produce the same or different resonant frequencies. The one or more openings may transversely cross the whistle mouthpiece in a parallel manner, or may alternatively exit the whistle mouthpiece at the front portion at a non-parallel location or at another location along the bottom or top of the mouthpiece.