Abstract: Disclosed is a regulator for regulating mask wearing tightness, the main features of which include a main patch, wherein the main patch is a long patch extended to both sides respectively. The main patch goes through two through grooves and two embedding grooves. The through grooves are close to both sides of the main patch respectively, and the embedding grooves are connected to the through grooves respectively. The width of the embedding groove is smaller than the width of the through groove. The main patch can be combined with the hanging strings of mask, so as to regulate the tightness of the hanging strings when wearing the mask.

Abstract: An air inhalation and exhalation filtering mask has a mask body, an inhalation device, an exhalation device, and first and second filtering structures, wherein, on the middle portion of the mask body, first and second openings are respectively configured at an upper and a lower position. The inhalation device is configured on the mask body and covers the first opening. Air flows from the front side of the mask body, passing through the inhalation device, and flows to the rear side. The exhalation device is configured on the mask body and covers the second opening. Air flows from the rear side of the mask body, passing through exhalation device and flows to the front side. The first filtering structure filters air flowing to the rear side of the mask body, while the second filtering structure filters air flowing to the front side of the mask body.

Abstract: A retraction device, in particular for pull-out guides, has a housing, in which a guide for a linearly movable slider and a guide track for a driver attached to the slider are provided. The driver can be coupled with an activator and a damper comprising a damper housing and a piston rod is provided between the housing and the slider. There is a pull-out guide with a stationary guide rail and a running rail which is movable relative to the guide rail.

Abstract: A retraction device, in particular for pull-out guides, has a housing, in which a guide for a linearly movable slider and a guide track for a driver attached to the slider are provided. The driver can be coupled with an activator and a damper comprising a damper housing and a piston rod is provided between the housing and the slider. There is a pull-out guide with a stationary guide rail and a running rail which is movable relative to the guide rail.

Abstract: A system and method for providing video compression that includes encoding using an encoding engine a YUV stream wherein Y, U and V color values are encoded in parallel and patching together the Y, U and V color streams to form a compressed YUV output stream. The encoding engine further includes encoding each color value of the YUV stream in parallel using parallel encoding engines and a control engine for controlling operation all of the encoding engines in parallel. The YUV stream has an average bits per pixel value that varies from a first value to a second value that is double the first value. The encoding engine includes encoding the YUV stream in generally the same amount of time regardless of the average bits per pixel value.

Abstract: A cleaning apparatus is provided to clean a sophisticated electric device. The apparatus has cleaning units and each of the cleaning units has a cambered top. Thus, coordinated with an actuating device, a sophisticated electric device can be cleaned by using the cleaning apparatus with cleaning units having cambered tops.

Abstract: A circuit (12) for generating a line pattern display (100) comprises: a display for generating display elements which extend in first direction and second directions; first (14) and second (20) memories for holding values representative of pattern spacing in the first and second directions respectively; and a first (16, 18) and second (22, 24) logic circuits coupled to the memories to produce display elements in lines at positions spaced apart by a distance representative of the value stored in the first memory and along lines whose positions in the second direction are spaced apart by a distance representative of the value stored in the second memory. The circuit can easily be integrated with on-screen-display circuitry.