Mga Modelo ng 3D ng Telepono

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Ang telepono ay isang uri ng telekomunikasyon na nagpapahintulot sa iyo na magpadala at tumanggap ng pagsasahimpapaw sa layo sa pamamagitan ng mga de-koryenteng signal (ipinadala sa pamamagitan ng mga wire) o mga signal ng radyo.

 

kasaysayan

Ang pag-imbento ng telepono ay ang resulta ng gawain ng maraming tao at ang pag-akda nito ay hindi maaaring maiugnay sa isang partikular na tao.
The first prototype of the modern phone was patented in 1876 by the American inventor Alexander Bell. Bell’s tube served a transmission and reception of sound. It did not have a call function, and the call of the subscriber was through the handset with a whistle. The range of this device did not exceed 500 meters. For the lead in the invention of the phone, in addition to Bell, claimed about three dozen scientists, including McDonato, Edison, Gray, Dolber, Blake, Irvine, and Felker. This led to a series of litigation in the United States, which only confirmed the collective nature of the invention, recognizing the superiority of the various inventors for individual items.

In 1877 the inventor Wadow used a telegraph key to call the subscriber. In the same year, the German company Siemens and Halske began to manufacture telephone sets with two telephone tubes – one for reception, the other – for the transmission of speech.

Inimbento ni Thomas Edison ang isang carbon mic, na halos hindi nagbago hanggang 1980.

The history of the further phone development includes the invention of an electric microphone, which replaced the coal, loudspeaker, tone dialing, digital compression of sound, new telecommunication technologies (IP telephony, ISDN, DSL, cellular communications, DECT).

 

Non-electric “phones”

In general, the phone is a mechanism that has the ability to transmit sound over a long distance. The very first phones were mechanical devices based on sound transmission using air or other physical means, as opposed to electrical devices that based on electromagnetic signals.

Ayon sa isang sulat mula sa Peking pahayagan, sa 968 Inventor ng Intsik ng Kung Fu-Wing imbento ang thumtsein, na di-umano'y naipadala ang wika sa pamamagitan ng mga tubo. Ang mga pag-uusap sa pamamagitan ng mga tubo ay ginagamit ngayon.

Ang lubid telepono ay kilala rin para sa mga siglo, pagkonekta ng dalawang diaphragms na may lubid o may wire na nagpapadala ng tunog mula sa isang dulo sa isa pa sa pamamagitan ng mga vibrations ng lubid.

Ang pinakasikat na tatak ng telepono:

  • mansanas
  • Alcatel
  • Ericsson
  • HUAWEI
  • Kyocera
  • maliwanag
  • Marconi
  • Motorola
  • Nokia
  • Nortel Networks
  • palmOne / Handspring
  • Samsung
  • Siemens AG
  • Sony Ericsson