Digital Alarm Clock
Thread Rating:
  • 1 Vote(s) - 2 Average
  • 1
  • 2
  • 3
  • 4
  • 5
prajeswary83
Active In SP
**

Posts: 4
Joined: Dec 2010
#1
12-12-2010, 02:37 PM



hi.......[/size]i need report of digital alarm clock. i want for my project and implimentation. please send report to my email id
[size=small]
Reply
seminar surveyer
Active In SP
**

Posts: 3,541
Joined: Sep 2010
#2
13-12-2010, 04:06 PM

Abstract

A digital clock is a type of clock that displays the time digitally, i.e. in cyphers, as opposed to an analog clock, where the time is displayed by hands. Digital clocks are often associated with electronic drives, but the "digital" description refers only to the display, not to the drive mechanism. (Both analog and digital clocks can be driven either mechanically or electronically, but "clockwork" mechanisms with digital displays are rare.) The biggest digital clock is the Lichtzeitpegel ("Light Time Level") on the television tower Rheinturm Düsseldorf, Germany.
An alarm clock is a clock that is designed to make a loud sound at a specific time. The primary use of these clocks is to awaken people from their night'ssleep or short naps; they are sometimes used for other reminders as well. To stop the sound, a button or handle on the clock is pressed; but most clocks automatically stop the alarm sound if left unattended long enough. A classic analog alarm clock has an extra hand or inset dial that is used to specify the time at which to activate the alarm.
Traditional mechanical alarm clocks have one or two bells that ring by means of a mainspring that drives a gear that propels a hammer back and forth between the two bells or between the interior sides of a single bell. In some models, the back encasement of the clock itself acts as the bell. In an electric bell-style alarm clock, the bell is rung by an electromagnetic circuit and armature that turns the circuit on and off repeatedly.
Digital alarm clocks can make other noises. Simple battery-powered alarm clocks make a loud buzzing or beeping sound to wake a sleeper, while novelty alarm clocks can speak, laugh, sing, or play sounds from nature.
Some alarm clocks have radios that can be set to start playing at specified times, and are known as clock radios. A progressive alarm clock, still new in the market, can have different alarms for different times (see Next-Generation Alarms). Most modern televisions and cell phones have alarm clock functions to turn on or make sounds at specified times.

References:
en.wikipediawiki/Digital_clock
en.wikipediawiki/Alarm_clock
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  anti sleep alarm for students Guest 2 958 27-09-2013, 09:38 AM
Last Post: seminar projects maker
Thumbs Up touch screen based digital slate Guest 1 525 29-05-2013, 09:26 AM
Last Post: study tips
  scope of digital jewellary Guest 1 409 17-05-2013, 09:41 AM
Last Post: study tips
  digital image watermarking using Genetic algorithm Guest 0 561 24-04-2013, 12:03 PM
Last Post: Guest
  overall documentation of spread spectrum image watermarking with digital design Guest 2 772 04-02-2013, 12:00 PM
Last Post: seminar tips
  A Low-Power Single-Phase Clock Multiband Flexible Divider kesma 1 1,019 25-01-2013, 09:40 AM
Last Post: seminar tips
  Digital theatre system bahubali123456789 3 1,996 29-12-2012, 11:32 AM
Last Post: seminar tips
  Microcontroller based automatic night lamp with morning alarm Guest 0 869 14-10-2012, 03:11 PM
Last Post: Guest
  simple low cost digital code lock. kalyani rao 1 1,613 09-10-2012, 12:00 PM
Last Post: seminar flower
  electronic alarm sensor Guest 0 586 30-09-2012, 10:40 PM
Last Post: Guest