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Our
expertise in DSP based multimedia applications involving demodulation,
decompression and video processing combined with our know-how in displays,
gives us necessary background to provide design solutions in the area
of Digital TV, et Top Boxes & the like thus reducing development cycle.
We have worked in different applications involving similar technology
areas as in applicable for DVB / DVR etc. Some of relevant technologies
are given hereunder.
Multimedia
Technology
We have worked in both audio & video areas. We have close working
relationship with Texas Instruments as third party developers in area
of Video Codecs. Our strengths in multimedia area are
- Expertise
in implementation/development of algorithms on DSP based designs
- Expertise
in digital Watermarking for audio/still image
- Working
Experience on Different Data Compression Standards
In
addition, we have also experience in working in audio/video field using
Windows platform.
Digital Signal Processing
-
DSP
System Development: involving Hardware development, Software development
including optimization for performance parameters, Integration of
Hardware and Software and Testing based on Application. We can port
the high level application developed on to different DSP platform.
- Demodulators
(QPSK, QAM)
- Audio
/ Video codecs: MPEG2 / 4, AC3 etc.
-
Codec/Algorithm
Development: involving Audio/Video Encoder and Decoder Development
on PC based or DSP processor. We have executed projects like MPEG-2
/ 4 Visual Simple Profile development.
-
Audio-Visual
Streaming Development: involving Sync & Delivery Layer development
for Audio-Visual Codec as per MPEG-2 / 4, standard and Communications
protocols RTP/RTSP/UDP/IP/SIP/RTCP.
-
Digital
watermarking :Implemented Digital watermarking techniques on Still
images in spatial as well as Transform domain.
-
API
development: Development of OS independent API for PC based Audio-Video
Encoder and Decoder
-
Implementation
of diverse DSP algorithms
-
Software
development (assembly coding) of multiprocessor system using ADSP2101
DSP processors with high speed inter-processor communication through
SPORTs (synchronous serial ports)
-
PCM-DPCM
design and software development (assembly coding) on a standard
ADSP2101 DSP processor based kit.
-
Algorithms
for Frequency analysis (FFT), Filtering (FIR).
-
Double
precision adaptive filtering LMS algorithm for active noise cancellation.
-
Establishing
SPORT communication between Analog Devices processor ADSP2101 and
TMS processor TMS320C26.
-
RS232
serial communication interface to PC directly through SPORT of ADSP2106x,
ADSP2101 at 115.2kbps baud without the use of UART.
-
Interfacing
SPI port to ADSP2106x Serial port, and achieving serial communication
with the PC at 115.2kbps
MicroControllers
- Multi-processor
systems involving 32 bit controllers
- Graphics
controllers
Firmware
development
- Real Time
Operating Systems (VxWorks, WinCE / XP embedded, Embedded Linux etc)
- Middleware
development
- GUIs based
on Windowing systems such as XFree86, Qt/Embedded, or Microwindows
- Internet
based product solutions such as embedded web Browsers
- Application
development for network protocols (Modbus TCP, SNMP, SMTP, NTP,
HTTP, FTP)
- Embedded
Web servers, Secured Web access using SSL
- Command
Line Interface over serial interface, over IP,over modem.
- Application
for network management using SNMP.
- Spanning
tree protocol for the Ethernet switches
- Encryption
algorithms like AES key exchange
- Remote
firmware up gradation
- Modbus
TCP server, communication software
- SMTP
based mail client
- Java
based applications over web (For graph, dynamic content updation)
- TCP/IP
socket and multithreaded programming
-
Imaging
processing such as scan conversion, color pallets, zooming, compression
/ decompression, multi-overlay systems (graphics & text) etc.
-
Data
encryption & scramblers (for Conditional Access)
Hardware
Interfaces
- Memory
interfaces
- SRAM,
SDRAM Interface
- FLASH
Memory Adapter
- HDD
interface
-
Device
drivers for various peripherals such as ADC / DAC, USB 2.0, UART,
I2C, PCMCIA, Ethernet 1394 etc.
- Video
encoders for NTSC/PAL or RGB
- Display
systems based on CRT / TFT / Plasma etc.
Memory
storage solutions
- Hard-disk
drive
- Solid-state
flash memory storage
- Memory
sticks
- PCMCIA
Flash cards
- Disc-On-Chip
- Required
functions for a flash file management system
- Mapping
the file structure of the RTOS to the physical flash system
- Increasing
the endurance and lifecycle of the flash memory
- Detecting
and correcting data errors on the fly
For
Case Studies Click Here >>
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