1. By Rashmi Deshmukh

2.  Digital Thermometer
 Handheld computer
 Navigation System
 IP phone
 Software defined Radio
 Smart Cards
 RF tags

3. LCD
8-bit
Micro controller
Switch
Digital
Thermostat

4.  Hardware Architecture of Handheld Computer
DRAM
32-bit processor
LCD/Touchscreen
Graffiti/soft
keyboard
Flash
Communication
H/W
MIC Speaker
Video
Camera
USB
Ethernet
Infrared
Bluetooth

5.  Software Architecture of Handheld computer
Data
synchroniz
-ation
Applications
Mobile java
application
API KVM
Handheld OS and TCP/IP Protocol Stack
Computing Hardware
Communication
Hardware

6. Amplifier
DSP Based multi
channel satellite
receiver
Processor LCD
Digitalized map
& mapping S/W
Antenna
USB/RS232

7. MIC
Speaker
ADC
DAC
DSP GPP
LCD Keypad
Ethernet
interface
IP N/W
Voice
in
Voice
out Packetized
Data
Fig: IP Phone H/W Architecture

8. Voice application
RTP, RTCP
UDP Layer
IP Layer
Data Link Layer
Physical Layer
Fig: IP Phone Protocol Architecture
Ethernet

9. GPP
(Microcontroller)
LCD
Function Keypad
DPRAM
D
S
P
D
A
C
A
D
C
RF Output
Voice from MIC
Fig: Software defined Radio Transmitter

10. Java Card Hardware
Java Card Web servlet (JCWS) Framework
Java Card Applet
Java Card Virtual Machine
Fig: Java enabled smart card

11. RF Tag
Reader /
Writer
RF
Tag
Smart
Card
RS232
Fig: Contact-less Smart Card using RF Tag