Messaging and Chats
Dr. Lavian offers messaging and chat technical consulting involving short messages, SMS, MMS, Instant Messages (IM), chat, and chat applications. As a telecommunications expert and internet technology expert, he specializes in messaging and chat applications, software, services, and integrations with communications systems. Messaging and chats are universal methods of communication. In 2021, there were approximately 15B mobile devices worldwide. This number is expected to grow to 16.8B by 2023. In 2021, there were about 8B people in the world. That number is expected to grow to 8B by 2023. Messaging and chats are essential to using these mobile devices and have become a part of daily life across the globe.
Client-Facing App
A client-facing application is software running on various operating systems (OS) on mobile devices, tablets, personal computer browsers, or other installable software, as well as on TV sets. This type of application must have a UX/UI, a database, device drivers, communication modules to connect with the server, notification capabilities, a state machine to help determine appropriate behavior in varying situations of accessibility to the Internet, and the ability to manage documents, media, and files communicated between the endpoints of the chat.
Communication Channel
The communication channel typically involves XMPP, IP Socket, or MQTT technologies. Each technology is suitable for the hosting device on the client-facing application and relies on underlying network communications infrastructure. For example, IP Socket is the more traditional method utilized for communication between server-client applications. It is a type of datagram that establishes a connection using transport layer protocol (e.g., TCP and UDP).
Server-Side Infrastructure
The server side uses the complex computer networking infrastructure of messaging and chat applications to facilitate the communication of large numbers of people chatting online at scale. Load balancers are required to enable communication scale by balancing traffic to/from server farms. A scalable database is needed to store user details, chats, media content, etc.
Messaging & Chats Technologies
- Short messages service, SMS, MMS, Instant Messages (IM), chat, and chat applications.
- Internet Protocol (IP), IP Sockets, TCP/IP, UDP.
- Cloud Infrastructure: Amazon AWS, Microsoft Azure, Google GCP.
- Authentication and Authorization protocols: SAML, OAuth, LDAP.
- Push Notifications technologies to include Web push, HTTP server push, Flash XML Socket relay, etc.
Messaging and chats are areas of the telecom landscape that Dr. Lavian covers.
Messaging and Chats Expert
The following are Dr. Tal Lavian’s areas of expertise in the area of Messaging and Chats:
- Internet Protocol (IP), IP Sockets, TCP/IP, UDP.
- Databases: Relational Database, Hierarchical Database, Network Database, and Object-oriented Database.
- Databases: MongoDB, MySQL, Oracle SQL, Hadoop, Microsoft SQL, PostgreSQL IBM Db2, and more.
- Cloud Infrastructure: Amazon AWS, Microsoft Azure, Google GCP.
- Authentication and Authorization protocols: SAML, OAuth, LDAP, Kerberos.
- Messaging protocols: XMPP, IP Sockets, and MQTT.
- Push Notifications technologies to include Web push, HTTP server push, Flash XML Socket relay, etc.
- VoIP technologies: MOS Score, Jitter, Packet Loss, and Network Delay.
Background
Dr. Lavian holds a Ph.D. in Computer Science from UC Berkeley, specializing in network communications, and spent nearly 20 years researching, studying, and lecturing at UC Berkeley. He served as Principal Scientist and Principal Architect at Nortel Networks (1996–2007) and as a DARPA Principal Investigator. Dr. Lavian has over 120 patents including innovations in network communications and messaging architectures, over 25 scientific publications, and has been retained in over 70 cases, including 80+ depositions, before U.S. federal courts, PTAB, ITC, and international tribunals, on behalf of over 50 law firms and corporate clients.
Communication Channels and Server Infrastructure
Messaging systems rely on communication protocols such as XMPP (an open XML-based protocol designed for instant messaging and presence), IP Sockets (transport-layer connections via TCP/UDP), and MQTT. Server-side infrastructure handles notifications, authentication, end-to-end encryption, and cloud-based horizontal scaling. Modern messaging platforms also integrate VoIP audio, group chat, and audio/video conferencing, imposing strict network requirements for low jitter, low latency, and low packet loss.
Frequently Asked Questions
What messaging and chat technologies is Dr. Lavian expert in?
Dr. Lavian is expert in SMS/MMS protocols, instant messaging systems, chat platforms, XMPP, push notification architectures, real-time messaging protocols, and enterprise collaboration messaging systems in the context of patent litigation.
Has Dr. Lavian testified in messaging patent cases?
Yes. Dr. Lavian has testified in patent cases involving messaging technologies, chat applications, and real-time communication systems in federal courts and USPTO PTAB proceedings.
What types of messaging patent disputes has Dr. Lavian handled?
Dr. Lavian has handled patent disputes involving SMS/MMS message delivery, instant messaging protocols, chat application architectures, push notification systems, message queuing, presence detection, and group messaging implementations.
How does Dr. Lavian qualify as a messaging and chat expert?
Dr. Lavian holds a Ph.D. in Computer Science from UC Berkeley with expertise in real-time communication protocols. His 120+ patents include innovations in network communications and messaging architectures. He has testified in 70+ cases involving communications technologies.
Can Dr. Lavian testify on enterprise collaboration and team messaging patents?
Yes. Dr. Lavian’s messaging expertise extends to enterprise collaboration platforms, team chat architectures, channel-based messaging systems, file sharing integrations, presence and status protocols, and API-based messaging bots — all common subjects in modern patent litigation.
What is the role of a messaging expert in patent litigation?
A messaging expert analyzes patent claims involving message routing, delivery protocols, chat session management, notification systems, and messaging platform architectures. Dr. Lavian provides claim construction opinions, infringement analyses, and validity assessments for messaging patents in federal courts and PTAB proceedings.
For inquiries, contact Dr. Lavian at +1 (408) 209-9112 or via the contact page.