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Dr. Tal Lavian
http://cs.berkeley.edu/[email protected]
UC Berkeley Engineering, CET
Wireless Mobile Devices Patents
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What is a patent? Invention that is new and useful
What is an wireless mobile device? Any device that transmits wirelessly for communication
purposes
Patents for Wireless Mobile Devices
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What does a Patent do?3
Patents protects intellectual capital for any technological innovation.
Businesses use patents as a business tool not only for maintaining technology leadership but also for nurturing economic growth.
In a rapidly growing industries, intellectual property (IP) can make the difference between survival and failure.
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What does a Patent do? (Cont.)4
Inventors and entrepreneurs need patents (and patent laws) for:
protecting their inventions in the very early stages of product development
determining the patentability of their invention avoiding infringement of a competitor’s patent and leveraging their patent as a business asset
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Recognizing Intellectual Property5
When viewing things within an IP framework, you…
Recognize inventions Detect and avoid infringementDistinguish confidential information from general
knowledgePreserve confidentiality
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Recognizing Intellectual Property
Trademarks Logos & symbols
Copyrights Right to reproduce an
idea or information Includes software
Patents Invention that is new and useful
Trade Secrets Non-disclosed information that is valuable
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Wireless Mobile Device Patent Areas7
Software
Electronics, display (touch screen), Qwerty keyboard
Java
Transmission over wireless channels
Data and speech coding
Infrastructure: 2G, 3G and Wi-Fi technology
Obviously, the above list is not exhaustive
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Wireless Mobile Devices 20138
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Market directions9
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What is Wireless Communication?10
Any form of communication that does not require the transmitter and receiver to be in physical contact
Electromagnetic wave propagated through free-space Radar, RF, Microwave, IR, Optical
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Characteristics of Wireless Mobile Devices
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Wireless Limited bandwidth, high latency Variable link quality (noise, disconnections, other
users) Heterogeneous air interfaces
Mobility: User and terminal location dynamically changes Speed of terminal mobility impacts wireless bandwidth
Portability Limited battery capacity, computing and storage Small dimensions
More Signal Processing
More Protocol Processing
Higher Energy Efficiency
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Electromagnetic Spectrum12
From: imagine.gsfc.nasa.gov.docs
109
1012
103.414
x105.7
14
x
1017
1019
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Evolution of Cellular System13
First generation: Analog – Voice Analog modulation, cellular
phone (AMPS) with manual roaming
Second Generation: Digital Voice & Data Digital modulation Cellular and
PCS phones with seamless roaming, integrated paging
Third Generation (3G): Digital Multimedia Unified digital access, voice,
data, video music, gaming, m-commerce, sensor etc.
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Wireless Network Technology14
Bluetooth -
PAN
WLAN
WWAN
802.11b -
Cellular - range in kms
1 to 3 m
100 to 400 m
Technology
Geography
Off-campusopen areas
On-campus
office, home, school
Personal space
office, briefcase, person
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Basics of Cellular Systems
BSC
BSC
MSC
MSC
VLR
HLR
PSTN
OMC
AuC
EIR
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Basics of Cellular Systems
Towers can transmit within a certain range:
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Strong signalWeak signal
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Basics of Cellular Systems
A hexagon (a roundish, tessellating shape) is used to represent adjacent tower-ranges:
How can a phone tell which tower it is receiving from?
How can a tower tell which phone it is receiving from?
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Basics of Cellular Systems18
http://nutritekgroup.com/images/GSM6.png
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Basics of Cellular Systems
Frequency reuse
Hand over
Packet switched vs circuit switched
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The OSI Model
Application layer
Presentation layerSession layer
Transport layer
Network layer
Data Link layer
Physical layer
Application layer
Presentation layerSession layer
Transport layer
Network layer
Data Link layer
Physical layer
Transmitted data
Received data
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Summary
A wireless mobile device depends on information delivered by electromagnetic waves over various distances
The efficiency and capacity of wireless information delivery has increased as a result of hundreds of extremely valuable patents
A patent is legal protection of a new and useful invention; beyond protecting new ideas, it can be leveraged for profit
The size, functionality, and attractiveness of mobile devices have also improved due to valuable patents
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Next Week: Smartphone Patent War
We will take an in-depth look at the many different battles comprising the patent war, including Who’s suing who Over what technology And for what possible reasons
We will also discuss alternatives to litigation, such as licensing IP
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