Abstract: A method for manufacturing a metal nanoparticle is provided. The method includes steps of: a) providing a metal salt solution, b) providing a reducing agent, c) providing a protecting agent, d) providing an alkaline solution, e) mixing the salt solution, the reducing agent, the protecting agent and the alkaline solution to form a slurry within a high-gravity field, and f) separating the metal nanoparticle from the slurry.

Abstract: A portable audio recording and playback system is provided. The portable audio recording and playback system can synchronously display the corresponding lyrics or character contents, and it also can selectively record user's voice or the mixed signal of the user's voice and a background music including music and a human voice of singer during playback. Or the volume of the human voice in the background music can be increased or decreased corresponding to that of the music and be outputted or repeatedly played with changing speech speed without the tone changed for achieving the effects of on-the-go vocal and/or music accompaniment, voice recording, and language learning with changing speech speed without the tone changed.

Abstract: A portable electronic device structure includes a first body having an input device, a second body having a screen, and a connection arm. The connection arm has two ends pivoted to the first body and the second body respectively, such that the second body moves relative to the first body via the connection arm, and thus, the second body has at least a first operation position where the second body is drawn close to the first body, or a second operation position where the second body is inclined to the first body at an angle for exposing the input device on the first body.

Abstract: A multiplexing method for data switching is disclosed. In the method, a continuous data is received, and the continuous data includes a plurality of super frames, and each super frame includes a plurality of frames. These super frames are divided into a set of even super frames and a set of odd super frames. The frames included in the set of odd super frames are sorted by corresponding required bit error rate of each frame decreasingly or increasingly. The frames included in the set of even super frames are sorted by the required bit error rate of each frame increasingly or decreasingly. An encoder is used to encode these sorted super frames.

Abstract: A hanging and desktop dual-purpose compute device comprises a main body having a display, a lifting handle, and an input device. The main body includes a groove at an end of the main body for accommodating the input device, and two corresponding sides of the lifting handle are pivotally coupled to the main body, and each side includes a pivoting portion, such that the lifting handle can be rotated for hanging the main body. The pivoting portion includes a resilient member, such that when the lifting handle is rotated towards a side of the main body opposite to a display screen and tilted to a specific inclination with a side of the main body to support the main body on a flat surface, the resilient member can balance the main body, and the main body will not tilted to any disposing direction.

Abstract: A portable electronic device including a first body, a second body, and at least one speaker is provided. The second body is pivotally connected to one side edge of the first body, such that the second body is selectively rotated to cover the first body, or to form an angle with respect to the first body. The speaker is movably disposed on an upper surface of the first body, and can be moved relative to the first body. Thus, the speaker can be moved and fixed to a predetermined position to achieve optimized output sound quality.

Abstract: A portable electronic device including a first body, a second body, and at least one speaker is provided. The second body is pivotally connected to one side edge of the first body, such that the second body is selectively rotated to cover the first body, or to form an angle with respect to the first body. The speaker is movably disposed on an upper surface of the first body, and can be moved relative to the first body. Thus, the speaker can be moved and fixed to a predetermined position to achieve optimized output sound quality.

Abstract: The present invention is to provide a communication device comprising a flip-cover including a screen on its inner surface, a phone body including an input unit on its top surface, and a connection member including a first portion pivotably connected to a portion of the flip-cover such that the flip-cover is adapted to pivot about the connection member, and a second portion proximate the first portion pivotably connected to a portion of the phone body such that the phone body is adapted to pivot about the connection member, enabling a pivotal angle of the flip-cover disposing about the phone body to be changed so as to facilitate the operation of text editor and communication functions of the communication device.

Abstract: A hanging and desktop dual-purpose compute device comprises a main body having a display, a lifting handle, and an input device. The main body includes a groove at an end of the main body for accommodating the input device, and two corresponding sides of the lifting handle are pivotally coupled to the main body, and each side includes a pivoting portion, such that the lifting handle can be rotated for hanging the main body. The pivoting portion includes a resilient member, such that when the lifting handle is rotated towards a side of the main body opposite to a display screen and tilted to a specific inclination with a side of the main body to support the main body on a flat surface, the resilient member can balance the main body, and the main body will not tilted to any disposing direction.

Abstract: The present invention provides a smartphone comprising a sliding cover including two troughs provided at both sides thereof, a first signal contact provided under one of the troughs, and a phone body including a keypad for mobile phone provided adjacent to one end thereof, a button region for video games provided adjacent to the other end thereof, two grooves provided on its both sides and adapted to matingly engage with the troughs, and second and third signal contacts provided on either groove. Thus, the smartphone may operate as a typical PDA when the phone body is fully covered by the sliding cover, as a typical video game machine when the sliding cover moves to one end of the phone body to expose the button region and let the first signal contact electrically contact the second signal contact, or as a typical mobile phone when the sliding cover moves to the other end of the phone body to expose the keypad and let the first signal contact electrically contact the third signal contact.

Abstract: A triangular warning sign for vehicles includes a triangular carrier board, a power supply and a mount. The triangular board is used for carrying a triangular warning sign and the power supply while the mount makes the triangular board stand perpendicular to the ground. The triangular warning sign is composed by electro luminescent pieces or a plurality of light-emitting diodes. The power supply can be solar power supply, batteries, or a car charger and it can automatically switch between the solar energy and batteries depending on occasions for providing the triangular warning sign power. In usage, the invention illuminates by Electro Luminescent or light-emitting diode to achieve features of electricity-saving, safety, and enough brightness for better warning effect, more convenience and energy-saving. The present invention can further disposed with an alarm and the power supply is with both AC and DC charging capabilities.

Abstract: The present invention is to provide a modular stand structure being applied to the back panel of a portable electronic device, which comprises a first board and a cover disposed on a second board. The top of one surface of the first board has a movable button, such that when the movable button is pushed forward, it moves a sliding member and an another sliding member located in the first board towards both sides such that a stand on the other side of the first board will be detached from its embedding latch due to the sliding of those sliding members, while the outward force produced by a spring at one end of a support rod drives two longitudinal grooves disposed on another side of the first board to slide downward to a fixed position in order to constitute a stable supporting angle and give better viewing angle and better operating angle for the portable electronic device.

Abstract: The present invention is to provide a notebook computer having a mechanism for configuring the notebook computer as a desktop computer, wherein a housing thereof comprises a substantially rectangular first recess on a top operation surface of the housing adjacent the display for receiving a pivot board pivotably coupled to the display and the housing respectively; a substantially rectangular second recess on the operation surface distal from a display with a keyboard detachably received therein; and a support assembly at a rear surface of the housing including a foldable stand adapted to form an oblique angle with respect to the housing by extending on a desk.

Abstract: This invention discloses a reduced-width, low-error multiplier that can be used in Digital Signal Processing (DSP). Specifically, this invention relates to a reduced-width, low-error multiplier capable of processing digital signals of communication systems such as a timing recovery circuit, a carrier recovery circuit, and a FIR filter, etc. This invention derives a binary compensation vector to compensate for the error caused by the reduction of area without any hardware overhead, and implements the compensation structure of an Array and a Booth multiplier to reduce hardware complexity.

Abstract: A tent has a framework having at least two flexible strips bent with an intersection at central points of the strips as a top of the tent. A flexible ring is provided outside the flexible strips and adjacent to the top of the tent. A cloth is sheathed on the framework. The tent has a broad top space without a central pole, which is convenient to use in hunting or as a business site.

Abstract: A foldable tent has at least four frame loops in even numbers sequentially and pivotally connected to form a tent frame by attaching multiple easing pieces respectively between adjacent frame loops. Additionally, at least one cover piece is attached to the frame loops to cover the tent frame. Each easing piece is composed of two sleeves to be mounted respectively around two adjacent parts of two adjacent frame loops and a web formed between the two sleeves. Whereby, webs of every easing piece provide surplus space for the frame loops to keep the frame loops from squeezing each other when the foldable tent is folded.

Abstract: The present invention is to provide a mechanism for pivotably coupling a notebook computer and a display thereof together for enabling the display to be positioned at optimum view angle and height relative to the notebook computer, wherein a keyboard is received in a forward recess of a housing of the notebook computer, and a substantially rectangular pivot board is received in a rearward recess of the housing, the pivot board having a forward side hingedly coupled to the keyboard and a rearward side hingedly coupled to the display so that the display is adapted to pivot upward for adjusting height and position thereof relative to the housing.

Abstract: The present invention is to provide a modular stand structure being applied to the back panel of a portable electronic device, which comprises a first board and a cover disposed on a second board. The top of one surface of the first board has a movable button, such that when the movable button is pushed forward, it moves a sliding member and an another sliding member located in the first board towards both sides such that a stand on the other side of the first board will be detached from its embedding latch due to the sliding of those sliding members, while the outward force produced by a spring at one end of a support rod drives two longitudinal grooves disposed on another side of the first board to slide downward to a fixed position in order to constitute a stable supporting angle and give better viewing angle and better operating angle for the portable electronic device.

Abstract: A tent has a framework having at least two flexible strips bent with an intersection at central points of the strips as a top of the tent. A flexible ring is provided outside the flexible strips and adjacent to the top of the tent. A cloth is sheathed on the framework. The tent has a broad top space without a central pole, which is convenient to use in hunting or as a business site.

Abstract: The present invention is to provide a mechanism for pivotably coupling a notebook computer to its display, wherein a keyboard is received in a forward recess of a housing of the notebook computer, and a substantially rectangular pivot board is received in a rearward recess of the housing, the pivot board has a forward side hingedly coupled to the keyboard and a rearward side hingedly coupled to the display so that the display is adapted to pivot upward for adjusting height and position thereof relative to the housing.