77results about How to "Loud voice" patented technology

A video communication device includes a video communication device body; a camera fitted to the video communication device body to record images of an object; at least one detection unit fitted to the video communication device body to detect the object according to a predetermined condition; and a camera rotation angle adjuster fitted to the video communication device body to adjust a rotation angle of the camera according to detection data from the detection unit so that the camera automatically tracks a position of the object when the object moves. The moving object can be located through a detection unit, such as a voice sensor, a codec, a color sensor and an IR sensor, and be automatically tracked by suitable adjustment of the rotation angle of a camera. A wide angular field is ensured and video telephony quality is improved.

In the invention there is being combined the back cavities of two speakers so that one speaker is used as a general speaker and the other one provides a boosting effect to the general speaker. For example, the other speaker can act as a subwoofer to the general speaker. The back cavity of the speaker is extended by a tubular cavity. The tubular cavity can extend to either the front or back panel of the mobile phone, thereby boosting the other speaker located at the respective panel.

The present invention is a hollow body stringed musical instrument that utilizes a low mass, soundboard having a 12 to 25 foot radius dome configuration. The soundboard is made of a three ply torsion box design utilizing a honeycomb stiffening layer as the central core. Linear adjustable tuning braces are incorporated in the hollow body. The side and back of the instrument are also of a three ply construction having a polymer ir inorganic foam as the central layer. (Preferably this will be a closed cell foam.) The back also has a domed configuration with a 12 to 15 foot radius. All structural braces are eliminated from the interior of the instrument's body.

A sound generating mechanism of a dual bearing reel generates sound by the rotation of a spool, and includes a serrated member, an operation member, a sounding member, a first urging member, and a second urging member. The serrated member includes projections and rotates with the spool. The operation member can come into contact and be separated from the serrated member. The sounding member is pivotably movable in accordance with movement of the operation member between a sound generation position and a release position. The first urging member urges the sounding member toward the rotational center of the serrated member when the sounding member is in the sound generation position. While the sounding member is in the sound generation position, the second urging member applies a greater urging force to the sounding member when the spool rotates in the line-releasing direction than when the spool rotates in the line-winding direction.

The invention discloses a sulfur-free firecracker medicament and a method for the production thereof, and the medicament constituents are 50 to 70 parts of potassium perchlorate, 20 to 45 parts of aluminum powder, 5 to 20 parts of pearl powder, 10 to 30 parts of modified wood flour, and 0 to 5 parts of a mixture of ferroferric oxide and manganese dioxide or one material thereof. The preparation of the sulfur-free firecracker medicament is mainly characterized in that the wood flour undergoes the imbibitions treatment and the surface treatment by adopting a potassium nitrate and a micro-crystalline wax respectively. The sulfur-free environment-friendly firecracker produced by the sulfur-free firecracker medicament system of the invention has advantages of sonorous sound when setting off the firecracker, high rate of sonority, non discharge of noxious gas of sulfur dioxide, easy obtaining of constituents and materials, rather low cost, not containing prohibited articles such as potassium chlorate and being fully fit to replace the current sulfur-bearing firecracker.

The invention discloses a push-to-talk (PTT) voice system mobile phone terminal, a communication service system and a communication service method thereof. The mobile phone terminal comprises a signal indicator light, a power supply indicator light, an earphone, a microphone and a charging interface; a panel is provided with a short message read key, a dialing key, a hang off key, an emergency call key and an artificial service key; and the left side of a mobile phone is provided with a volume increase key and a volume decrease key, and the right side thereof is provided with a time telling key, a headset socket and a keyboard locking key. The communication service system consists of a software system and a hardware system, wherein software is formed by three levels, and hardware is formed by mutually connecting an external network, a firewall, a manual desk, a calling platform, a first exchange machine, a communication network, a fixed-line telephone, the mobile phone, a second exchange machine, a signaling gateway, a first server, a third exchange machine, a second server, a web server, a short message gateway, a business application server and a fourth exchange machine. Therefore, the invention has the advantages of loud ring tone, large keys, loud conversation sound, small volume and long standby time, thus being widely applied to old people.

A structure of speaker is disclosed. The disclosed speaker structure includes at least a bobbin, a coil, a membrane, and a magnetic assembly. The coil is wound around the side surface of the bobbin, and the membrane is disposed at end of the bobbin. Besides, the magnetic assembly is suspended in a through hole of the bobbin and have one end adhered to the membrane.

A solid drumstick tapers towards its balance point to redistribute weight at its shoulder and butt sections. A diameter of the shoulder and the butt portions increases or decreases in a consistent manner so as to not change the drumstick's balance point, but in a manner that still provides a means to move the mass outwards. A flared butt portion is less likely to cause slippage.

A loudspeaker suitable for the generation of surround-sound effects comprising a plurality of transducers that are together arranged to generate one or more beams of sound, at least one of which beams is steerable, wherein the transducers are arranged to reproduce sound only at frequencies higher than a selected lower frequency limit of 250 Hz or more. The loudspeaker may be foldable or dismantable so as to allow greater portability and may have means for interacting with an external electronics device, for example to allow low frequency sound signals to be reproduced by woofers in the external device.

The invention discloses a multi-frequency wireless digital-analog compatible mobile communication device which comprises a voice acquisition device, a voice play device, a power device, a key device, a display device, a storage device, a radio-frequency device and a central processing device connected with the voice acquisition device, the voice play device, the power device, the key device, the display device, the storage device and the radio-frequency device. The device disclosed by the invention adopts a wireless digital communication special chip as a core and can realize the functions of digital voice communication, editing, short message receiving and sending and the like through a voice signal digital processing module, a channel coding/decoding function module, a radio-frequency device and interface design. The digital communication special chip has a high integration level and a simple structure, and is low in cost and convenient to manufacture; and with only one external storage chip, a radio-frequency device and corresponding peripheral application circuit, the digital communication function can be realized.

A simulated land mine for use in a combat simulation or a simulated war game, comprising: a base frame with an opening facing upwards; an inner housing inserted into the base frame and including a first center hole formed vertically therethrough; a gas cylinder mounted in the first center hole and including a second center hole formed vertically therethrough, a gas chamber formed around the second center hole and a discharge aperture communicating the formers and being used for containing compressed gas; a valve mounted in the second center hole for sealing the discharge aperture; a receiving chamber formed at an upper part of the first center hole by the inner housing, the gas cylinder and the valve and being used to contain colored liquid or powder to be ejected; means for supporting the inner housing which enables the movement of the inner housing in relation to the base frame; and a means for actuating the valve to selectively open the discharge aperture to release the compressed gas from the gas chamber into the receiving chamber.

The invention discloses a ground disconnecting alarm, which is designed for preventing static hazard with site alarm display and switch signals to be outputted to a computer control system during loading and unloading of liquid petroleum products in an oil depot area. The alarm is mainly suitable for inflammable and explosive places of petrochemical industry, oil depot goods delivery stations, gas stations, tank trucks loading and unloading and the like for static grounding to control monitoring alarm, which ensures that static conduction in oil delivery operation is reliably ensured. The alarm comprises an alarm circuit, a control signal circuit, an alarm circuit box, a control signal circuit box and connection cables, wherein the alarm circuit box is connected with the control signal circuit box by the connection cables and is internally provided with a printed circuit board and an electronic element; the control signal circuit box is internally provided with a relay, an indicator light and an alarm bell; and the alarm circuit comprises a power transformer T, bridge rectifiers D1 to D4, a transistor D5, a photocoupler D6, a bidirectional thyristor D7, capacitors C1 and C2 and resistors R1 to R5.

Timekeeping device of the invention relates to a watch, has an impact rod (1), it can swing around the axis swing supported at its end, and at the other end part from the oscillation axis with impact hammer (2), by the impact of elastic sound element. Then, the impact rod (1) against the elastic element near the sound from the initial position to swing away from the sound element tensioning position to be driven, and then through the elastic tension from the position after the initial position can swing to impact position, in which the impact hammer (2) hit in the sound element. From the impact location to the impact hammer (2) swing movement and sound element spaced in the closed position, the impact rod (1) by the locking device locking position in shape with the impact can be prevented from entering the locking position in the movement.

The invention discloses a railway electronic information display screen for a high-speed railway station. A frame is arranged on the outer surfaces of the upper ends of support columns, one side of the frame is provided with a display screen body, a support plate is fixedly installed at the portion, close to the upper end, of the outer surface of the front end of the display screen body, bracketsare fixedly installed at the portion, close to one side, of the outer surface of the upper end of the display screen body, and rotary loudspeakers are arranged on the outer surfaces of the upper endsof the brackets; an anti-loose socket is fixedly installed on the outer surface of one side of the display screen body, a circuit board is fixedly installed on the inner surface in the display screenbody, a controller is arranged at the side, close to the circuit board, on the inner surface in the display screen body, and spotlights are fixedly installed on the outer surface of the lower end of the support plate. According to the railway electronic information display screen for the high-speed railway station, through the arrangement of the rotary loudspeakers, a heat-dissipating maintenancedoor and the spotlights, people can conveniently hear high-speed railway departure information, the interior of the display screen can be maintained, people can also conveniently watch the display screen, and better use prospects are brought.

A device (10) for active noise reduction consists of a chamber (12), which is arranged laterally in relation to a gas flow (14), whereby a chamber opening (13) is constructed in one wall of the chamber (12). In the area of the chamber opening (13) a deflection device (15) is adjustably arranged, whereby the deflection device (15), in a first position, at least partially directs the gas flow (14) running by the chamber opening (13) into the chamber (12), in order to compress air there, and, in a second position, directs the gas from the chamber (12) to the gas flow (14), in order to release the gas inside the chamber (12). The resulting alternating pressure inside the chamber (12) is radiated through the chamber opening (13) as sound and overlays the disturbing sound.

The invention belongs to the field of electronics, and mainly relates to an intelligent protecting device of a fixed installation type exhaust remote-measuring device and a setting method. The fixed installation type exhaust remote-measuring device comprises a host with an ultraviolet light emitter and a reflector, the intelligent protecting device comprises a control system, a detection apparatus, an audible and visual alarm, and a light-blocking steering engine, the control system is arranged on the host and is connected with the detection apparatus, the audible and visual alarm, and the light-blocking steering engine to control the operation, the detection apparatus and the audible and visual alarm are arranged at the external part of the host, the light-blocking steering engine comprises a light-blocking plate and a steering engine, the steering engine is fixed on the host, the light-blocking plate is arranged in front of an emission port of the ultraviolet light emitter, and the steering engine is connected with the light-blocking plate to control the swing. Compared with the prior art, according to the intelligent protecting device, pedestrians and animals can be effectively prevented from being damaged by ultraviolet light emitted by the fixed installation type exhaust remote-measuring device during normal operation, intruders are protected by the intelligent protecting device after reconstruction, and the safety of the passing pedestrians and the animals can be protected.