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51 results about "Decreased size" patented technology

Fingerprint imaging system and method, fingerprint identification system, electronic apparatus

The invention provides a fingerprint imaging system, a fingerprint imaging method, a fingerprint identification system and an electronic apparatus. The fingerprint imaging system includes an imaging window protective layer which is used for providing a contact surface of a human finger, a side light source which surrounds the imaging window protective layer and is used for emitting emergent light; the emergent light irradiates the contact surface and the human finger and then enters the imaging window protective layer, and then passes through the imaging window protective layer so as to form incident light, and an optical area array sensor which is located in a surface of the imaging window protective layer and is used for receiving the incident light, and obtaining fingerprint imaging information corresponding to the fingerprint of the human finger, wherein the surface of the imaging window protective layer is opposite to the contact surface. The fingerprint identification system and the electronic apparatus respectively comprise the fingerprint imaging system. The fingerprint imaging system, the fingerprint identification system and the electronic apparatus of the invention have the advantages of improved shock resistance and decreased size.
Owner:SHANGHAI OXI TECH

S/L-frequency band planar self-tracking antenna

The present invention discloses an S/L-frequency band planar self-tracking antenna. The S/L-frequency band planar self-tracking antenna comprises a radome, an antenna housing, an inner cavity supporting structure, an antenna array plane printed circuit board, an S-frequency band network printed circuit board, an S-frequency band antenna unit, an L-frequency band antenna unit, an S-frequency band network printed line, an L-frequency band network printed line, an S-frequency band sum-difference modulator and an S-frequency band low-noise filtering assembly; the S-frequency band antenna unit includes an S-frequency band orienting sheet, an S-frequency band radiation patch, an S unit supporting column and a feed pin; the L-frequency band antenna unit comprises an L-frequency band orienting sheet, an L-frequency radiation patch and an L unit supporting column; the S-frequency band network printed line is arranged at the lower surface of the S-frequency band network printed circuit board; the L-frequency band network printed line is arranged at the upper surface of the antenna array plane printed circuit board; and the S-frequency band sum-difference modulator and the S-frequency band low-noise filtering assembly are installed at the lower surface of the inner cavity supporting structure. The S/L-frequency band planar self-tracking antenna of the invention has the advantages of decreased size, reduced weight and improved gain.
Owner:BEIJING RES INST OF TELEMETRY +1

Slab clamp and distance device thereof

The invention relates to a slab clamp and a distance device thereof. The slab clamp comprises a claw and a lifting beam hitched with a crane, wherein the distance device is arranged at the bottom of the lifting beam, the distance device comprises a horizontally movable adjusting plate and a vertically movable support frame, the support frame is used for supporting the part between the adjusting plate and the slab so as to adjust the thickness of the slab clamped by the slab clamp, and a grading height measuring structure for adjusting the support height of the support frame is arranged on the support frame; the grading height measuring structure is a step hole arranged on the support frame with a decreased size from top to bottom or limit steps arranged on two sides of the support frame with an increased size from top to bottom, and the slab clamp also comprises a driving device for transmissively connecting with the adjusting plate. Since the slab clamp provided by the invention can cause the adjusting plate and the support frame to realize stop coordination at different locations by changing the position of the adjusting plate, the height adjustment of the support frame can be realized. Furthermore, since the adjusting plate is driven by a motor, the adjustment is easy, quick and labor-saving and the work efficiency of the slab clamp is improved.
Owner:WUYANG IRON & STEEL +1
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