DSP DESIGN & DEVELOPMENT

Digital Signal Processors (DSP) are used in building low-budget end-user devices for voice telephony, analog and digital modems, and short-distance wireless hardware.

CyberVision offers the design and development of firmware modules for DSP equipment provided by vendors such as Texas Instruments, Motorola, 3DSP, or proprietary.

VOICE PROCESSING

Design and development of a complete set of DSP based firmware modules required for voice processing products such as answering machines, speaker phones, IP-telephones (soft-phones), etc.

Including:

• Vocoders (723.1, 711, 728, 729A/B and custom)
• Adaptive Acoustic Echo Canceller
• Voice Activity Detection

ANALOG & DIGITAL MODEM CLIENTS & DATA PROTOCOLS

Design and development of DSP modules required for implementing analog modems (for traditional telephone lines) or DSL modems.

Including:

• ADSL G.Lite (G.992.2) & AAL2 PVC
• V.90, V.34, V.32bis/V32, V.22bis/V.22
• V.42bis, V.42, MNP 2, 3, 4

VOICE & VIDEO OVER IP PROTOCOL

Design and Development of DSP modules required for IP telephony implementations of end-user devices such as IP telephones (soft-phones) and PSTN-to-VoIP cards. We include traditional, widely deployed VoIP protocols: (H.323 for video and audio, MGCP and SGCP) as well as IP-telephony technology edge protocols (SIP and RTP).

INTERNET PROTOCOLS

DSP design and development of low and high level Internet protocol stacks. Include all most popular Internet protocols for networking, services and security:

• TCP, UDP, IP, ICMP, ARP, PPP
• DHCP, NAT, RIP
• SMTP, DNS, POP3, IMAP

DSP FAX PROTOCOLS

Design and development of protocols which provide faxing interoperability over traditional telephone lines or IP networks and can be utilized as a part of an analog modem or IP telephone. Including:

• V.17, V.29, V.27 ter, V21
• T.30

TELEPHONY

Design and Development of DSP firmware modules required for implementing end-user telephony devices such as answering machines, dialers, caller ID detectors, etc. Include:

• DTMF Detector & Generator
• Dial Pulse Generator
• Adaptive Line Echo Canceller
• Calling Identity Delivery
• Call Waiting
• Calling Identity Delivery on Call Waiting
• Distinctive Ringing/Distinctive Call Waiting
• Three-way Calling
• Call Forwarding

CyberVision offers DSP firmware design and development for end-user products, such as regular telephony (POTS), IP-telephony (VoIP) and Internet related tasks:

• Answering machines
• Speakerphones
• Caller ID
• Analog modems
• DSL modems
• Fax machines
• Fax to IP gateways
• IP telephones (softphones)
• PSTN-to-VoIP PC cards
• Home IP routers and HUBs