Provides information and reviews of electronics and electrical products, including computers, audio and video electronics, fiber optics, electronic components, RF and microwave electronics, security and alarm products, sensors and detectors, lightings and lamps, digital cameras, camcorders, cell phone, battery, printers and copiers, power supplies, optoelectronics, cables and connectors, and satellite communication products.
|
|
Wednesday, 06 September 2006 |
|
A cellular phone is provided with a rechargeable battery pack which is easily detachable from the cellular phone for charging when the battery pack's power is exhausted. Various types of rechargeable battery packs are known for use with cellular phones. The vast majority of such battery packs use either lithium cells, or nickel-cadmium or nickel-metal hydride cells. Typical battery housings for cellular phones incorporate a plastic case or enclosure for holding the battery cells. The battery pack is locked by a locking apparatus mounted on the body of the mobile phone. The battery pack has electrodes formed on the inner and outer surfaces of its lower portion. The battery pack of a cellular phone is provided with a protective circuit for preventing a rechargeable battery from overcharge, overdischarge, or overcurrent. |
|
Read more...
|
|
|
Tuesday, 05 September 2006 |
|
A network is a collection of interconnected devices, which route packets of digitized information throughout a network, allow users to access resources and data. Computer networks comprise multiple computers that are interconnected for communication with each other. Wireless routers allow portable electronics to share information and resources via wireless communications. A router uses a routing protocol to exchange information with other routers in order to maintain a consistent view of the network. The routers distinguish data packets according to network protocols and forwards traffic according to network-level addresses. A router includes ports for channeling communication throughout the network, a primary port facility having a single processor, and a router card for controlling the router ports. |
|
Read more...
|
|
|
Tuesday, 05 September 2006 |
|
Electrical generators transform mechanical energy into electrical energy. A generator set includes an engine driven by a fuel such as gasoline, and a rotating shaft driven by the engine. Electric power plants include hydroelectric power plants, thermal power plants, and nuclear power plants. Generated electricity is delivered through power transmission lines and potential transformers. Synchronous power generators have a magnetic rotor that is surrounded by a stationary stator having conductive windings. A turbine generator generates electric power by converting mechanical energy into electrical energy. Hydroelectric power generation is one of the most inexpensive and cleanest methods for generating large amounts of electric power. Wind power generation produces electric power utilizing natural wind. |
|
Read more...
|
|
|
Tuesday, 05 September 2006 |
|
An electronic dictionary is a machine readable dictionary for retrieval of information, e.g. definitions, translations, pronunciations, which is displayed on a screen of a displaying device. In an electronic dictionary, a string of a word to be retrieved is input by a keyboard, and a result of retrieval is displayed on a screen of a displaying device. Language translation methods have evolved over the years and vary from traditional human translation to machine translation to machine translation with a human translation component. Machine translation is a kind of automatic translation from one language into another without human aid. An electronic dictionary uses a dictionary memory storing vocabulary data which consists of multiple blocks of word data representative of words of a language. |
|
Read more...
|
|
|
Monday, 04 September 2006 |
|
The global positioning system (GPS) is a satellite based navigation system having a constellation of 24 earth orbiting satellites. Global positioning system receivers determine location, velocity, and time by receiving and processing information in GPS signals received from GPS satellites. Global positioning system (GPS) receivers provide accurate location, velocity and time information based on specially coded data broadcast from orbiting satellites. A GPS signal contains timing information that allows a user to determine the time elapsed for the GPS signal to transverse the distance between the GPS satellite and a receiver receiving the signal. Global position system receivers and related apparatus have become widely used for determining geographical location and time in commercial applications. |
|
Read more...
|
|
|
Monday, 04 September 2006 |
|
A capacitor is an electronic component that stores energy in the electric field created between a pair of conductors. A typical capacitor comprises a pair of electrode layers having dielectric material therebetween. Capacitance has been found to be inversely proportional to the thickness of the dielectric material, thus thin film capacitors are generally seen as a preferable means to achieve high performance. Polyester films have been popularly used as base film of capacitors because they have excellent mechanical, thermal and electrical properties. A thin-film capacitor has a structure wherein a lower electrode, a dielectric layer, and an upper electrode are deposited on a substrate. Thin film capacitors are used in a variety of semiconductor integrated circuit devices. |
|
Read more...
|
|
|
Sunday, 03 September 2006 |
|
A camera phone is a combination of a cellular telephone and a camera in a single housing. The mobile terminal device provided with a digital camera has an image-information transmitting and receiving function in addition to a conventional voice-information and text-information transmitting and receiving function. Camera phones comprise a mobile, hand-held telephone and a digital camera in the same physical package. Digital camera lenses are added as a feature on cellular telephones to allow users to communicate and exchange information through pictures. A cell phone with an electronic camera has a built-in taking lens and a viewfinder. The camera lens module comprises an image sensor provided on a printed circuit board and a lens holder fitted with an infrared filter. |
|
Read more...
|
|
|
|
<< Start < Prev 11 12 13 14 15 16 17 18 19 Next > End >>
|
| Results 273 - 289 of 322 |
Electronics Information
