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公开(公告)号：US20230261617A1
公开(公告)日：2023-08-17
申请号：US18135060
申请日：2023-04-14
申请人： Logitech Europe S.A.
CPC分类号： H03F3/1855 , H04R1/04 , H04R1/2807 , H04R3/04 , H04R7/04 , H04R9/08 , H03F2200/03
摘要： A microphone system includes a microphone and a pre-amplification conditioning circuit configured within a housing and comprising a pair of matched JFETs configured in a differential pair with common-source configuration and, when biased, are operable to receive and amplify the differential microphone output signal. The microphone further includes a pair of BJTs configured as a complimentary feedback transistor pair with each of the pair of BJTs coupled in parallel to a corresponding one of the pair of matched JFETs, and a current sink coupled to the matched JFETs and corresponding emitter electrodes of the BJTs and operable to maintain a fixed total direct current through each of the matched JFETs and BJTs, which reduces the JFETs corresponding electrical load, reduces signal noise, and increases a maximum amplified microphone output signal level at the drains of the matched JFETs.
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公开(公告)号：USD1033402S1
公开(公告)日：2024-07-02
申请号：US29813977
申请日：2021-11-02
申请人： Logitech Europe S.A.
设计人： James Leigh Toggweiler , Steven Ryutaro Takayama , Anthony Cooper Mattana , Mark Harold Burleson , Adam Kirk Bennett , Aron Michael Rosenberg
摘要： FIG. 1 is a top back left side perspective view of a wireless microphone according to our design;
FIG. 2 is a top front right side perspective view of the wireless microphone;
FIG. 3 is a bottom front left side perspective view of the wireless microphone;
FIG. 4 is a back elevation view of the wireless microphone;
FIG. 5 is a left elevation view of the wireless microphone;
FIG. 6 is a front elevation view of the wireless microphone;
FIG. 7 is a right side elevation view of the wireless microphone;
FIG. 8 is a top plan view of the wireless microphone; and,
FIG. 9 is a bottom plan view of the wireless microphone.
The dashed lines shown in the figures depict portions of the wireless microphone that form no part of the claimed design.-
公开(公告)号：USD1008262S1
公开(公告)日：2023-12-19
申请号：US29823218
申请日：2022-01-14
申请人： Logitech Europe S.A.
设计人： James Leigh Toggweiler , Steven Ryutaro Takayama , Anthony Cooper Mattana , Mark Harold Burleson , Adam Kirk Bennett , Aron Michael Rosenberg
摘要： FIG. 1 is a top front right side perspective view of a wireless transmission receiver according to our design;
FIG. 2 is a bottom back right side perspective view of the wireless transmission receiver;
FIG. 3 is a front side perspective view of the wireless transmission receiver;
FIG. 4 is a right side perspective view of the wireless transmission receiver;
FIG. 5 is a back side perspective view of the wireless transmission receiver;
FIG. 6 is a left side perspective view of the wireless transmission receiver;
FIG. 7 is a top side perspective view of the wireless transmission receiver; and,
FIG. 8 is a bottom side perspective view of the wireless transmission receiver.
The dashed lines shown in the various figures are provided for the purpose of illustrating unclaimed portions of the wireless transmission receiver. The dashed lines form no part of the claimed design.-
公开(公告)号：US20230246604A1
公开(公告)日：2023-08-03
申请号：US17589651
申请日：2022-01-31
申请人： Logitech Europe S.A.
CPC分类号： H03F3/1855 , H04R1/04 , H04R7/04 , H04R1/2807 , H04R3/04 , H04R9/08 , H03F2200/03
摘要： A microphone system includes a microphone and a pre-amplification conditioning circuit configured within a housing and comprising a pair of matched JFETs configured in a differential pair with common-source configuration and, when biased, are operable to receive and amplify the differential microphone output signal. The microphone further includes a pair of BJTs configured as a complimentary feedback transistor pair with each of the pair of BJTs coupled in parallel to a corresponding one of the pair of matched JFETs, and a current sink coupled to the matched JFETs and corresponding emitter electrodes of the BJTs and operable to maintain a fixed total direct current through each of the matched JFETs and BJTs, which reduces the JFETs corresponding electrical load, reduces signal noise, and increases a maximum amplified microphone output signal level at the drains of the matched JFETs.
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公开(公告)号：USD995497S1
公开(公告)日：2023-08-15
申请号：US29817286
申请日：2021-11-30
申请人： Logitech Europe S.A.
设计人： James Edward Renwick , Branko Lukic , Homin Lee , Tzyy-Woei Richard Sung , Adam Kirk Bennett , Clayton Christopher Williamson , Aron Michael Rosenberg
摘要： FIG. 1 is a perspective view of a microphone cover showing our new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a third perspective view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a front elevation view thereof;
FIG. 7 is a rear elevation view thereof;
FIG. 8 is a left side elevation view thereof; and,
FIG. 9 is a right side elevation view thereof.
The broken lines depict portions of the microphone cover in which the design is embodied that form no part of the claimed design.-
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公开(公告)号：US20180316830A1
公开(公告)日：2018-11-01
申请号：US15583875
申请日：2017-05-01
申请人： Logitech Europe S.A.
CPC分类号： H04N5/2252 , H04N5/2256
摘要： In certain embodiments, a video camera system includes a camera housing including a back side, a plurality of concentric electrical traces disposed on the back side of the camera housing, and a notched mounting apparatus disposed on the back side of the camera housing, where the notched mounting apparatus can be operable to receive and secure a modular attachment to the camera housing such that the modular attachment is mechanically and rotatably coupled to the camera housing. In some implementations, the one or more of the concentric electrical traces can be configured to contact one or more electrical contacts of the modular attachment and remain in contact with the one or more electrical contacts as the camera housing is rotated with respect to the modular attachment.
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