1 / 10

Understanding BCD Excess-3 and DTMF: Functions and Applications

Learn about BCD Excess-3, a numeral system with biasing value N, and DTMF tones for communication control. Explore truth tables, logic symbols, and applications. Gain insights into mapping BCD to Excess-3 and electrical circuit applications with a focus on 7-segment displays.

kapila
Télécharger la présentation

Understanding BCD Excess-3 and DTMF: Functions and Applications

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FUNCTION OF COMBINATIONAL LOGIC. Decoders & Encoders By: Fariza EL Sharif Norhan Abo Hani

  2. BCD Excess 3 • The Code conversion Procedure to Excess 3 is a numeral system used on some older computers that uses a pre-specified number N as a biasing value. It is a way to represent values with a balanced number of positive and negative numbers.

  3. TRUTH TABLE: BCD Excess-3 The Truth Table of the BCD Excess-3:

  4. MAPS OF BCD TO EXCESS 3 BCD Excess-3

  5. BCD Excess-3 Logic symbol for a BCD Excess-3 : Fig. (1) BCD Excess-3

  6. WHAT IS DTMF ? • DTMFis a method of sending and receiving control information over a communications channel. • The reader is probably most familiar with DTMF tones as heard on a modern push-button telephone. Each digit on the keypad is encoded as a DTMF tone, which is then transmitted over a medium, and decoded at the receiving end. Dual tone multiple frequency signaling

  7. Application DTMF Fig. (2) application DTMF

  8. THE ELECTRICAL CIRCUITS

  9. APPLICATION DTMF Turth Table a 7-Segment Display

  10. Thanks 

More Related