Consulting Services & Policies

MISSIONS
SERVICE COVERAGE
OUR EXPERIENCES
THE SERVED COMPANIES AND PROFESSIONAL ORGANIZATIONS
CONSULTING FEE AND TERMS

consulting@4Dperception.com

MISSIONS

(1) Provide physical understanding and analytical solutions, including optical, electrical, mechanical, and packaging thermal analysis and modeling; for the phenomena in optical systems, adaptive optical system, photo-electronic system, optical communication and laser atmosphere propagation;

(2) Provide fast solutions for individual difficulty or problem that occurs in product development, in a prototyping procedure, or in a manufacturing and product yield improvement process, which suddenly becomes a bottleneck in these activities. To solve the problem or to get an optimized solution, the team needs a deep and systematic understanding in all branches of physics with proficient mathematic skills;

(3) Special purpose model development that the commercial software is inconvenient or impossible;

(4) Numerical prototyping for project idea and patent ideas -- verify your idea theoretically first before using it -- an idea may not be achievable in laboratory, or even on principle. Usually, if an idea has theoretical support, it does not mean it is achievable in laboratory. However, if an idea has no theoretical support, it does mean it is not achievable in laboratory. Therefore an idea being theoretically verified is a prerequisite before starting laboratory work;

(5) Software algorithms and procedures for hardware control;

(6) Financial modeling (including commodity and stock trading markets) and analysis and strategy development of commodity and stock trading.

SERVICE COVERAGE

• optics (linear, nonlinear, adaptive)
• High energy laser nonlinear propagation in atmosphere
• laser frequency stabilization
• atmosphere propagation and laser communication
• optical fiber communication
• electrical feedback circuit and loop
• mechanic analysis (such as for stage Risley beam director)
• thermal transfer, radiation and dissipation (such as for packaging & hard-disk, etc.)
• dynamics (electrical, thermal, mechanical)
• optical and digital image processing
• optical tracking and image stabilization (such as unti-shake from jitter)
• control algorithms
• image restoration including 1) treasure photo recovering, repairing and refreshing
and 2) blur photo due to unfocused or swift shot
• combining small-area photos into a larger or even a huge wide-angle photo (if your camera lens is not wide enough, you could take 4 or 8 or 16 separate pictures with certain overlaps for the scene, then we can combine them into one)

OUR EXPERIENCES

ADAPTIVE OPTICS AND LASER PROPAGATION IN ATMOSPHERE

Laser beam propagation in turbulence of atmosphere ;
Modeling and analysis for free space laser communication link ;
Analysis for optical tracking and deformable mirrors;
Analytic analysis, modeling, and image data processing;
Reciprocity of electromagnetic wave and optics;
Modeling and simulation for huge segmented optical telescope ;
Phase diversity algorithm for wave front measurement;
Accurate tracking algorithms;
Actuator response and control for deformable segmented sub-apertures;
Pattern recognition, image processing and control algorithms.

GENERAL OPTICS AND OPTICAL COMMUNICATION

Optical system and component model development
Fiber communication system analysis
Optical phase lock loop analysis (optical and electrical circuit)
Semiconductor laser frequency stabilization
Laser linewidth narrowing
Laser phase noise reduction
Optical system and component analysis
Mount model for Photonic packaging

Laser application: sensing and positioning
Optical wave-guide
Optical pulse nonlinear compression and transmission
Soliton theory in optical fiber communication
Fiber dispersion, polarization, and mode coupling
Signal channel coupling in optical fiber
Inverse problems in optics
Coherent and non-coherent optic test and measurement

Depth camera by projecting gratings
Phase camera
Optical clock
Laser rate equation

ELECTRICAL CIRCUIT ANALYSIS

Electrical circuit noise analysis
Equivalent circuit analysis for laser and control loop
Model development of digital phase detector
Electrical pulse compression and ultra-short pulse generation by nonlinear transmission line

APPLICATION OF ELECTROMAGNETIC THEORY

Electromagnetic field theory and calculation
Microwave guide
Inverse problems in electromagnetics

THERMAL ANALYSIS FOR ENGINEERING PROBLEMS

Photonic packaging thermal analysis
Magnetic recording head (hard disk) thermal analysis
….

MECHANICAL ANALYSIS FOR ENGINEERING PROBLEMS

Mechanical dynamics;
Motion equations from Lagrangian ;
Mount Model;
Learning based algorithm of real time control for mechanical system

ENGINEERING APPLICATIONS OF PHYSICS AND MATHEMATICS

Nonlinear physics (fractal, chaos, etc.)
Solid state physics and band theory
Container design with pressure compensation during elevation change
Inverse problems in ultrasonic wave
….

MAGNETIC RECORDING HEAD AND MICROMAGNETICS

Micro-magnetic model development
Magnetic recording (MR) head modeling and design
MR head product yield improvement
Thermal analysis and model development for magnetic recording head

HUMAN STEREO PERCEPTION APPLICATION

Human stereo perception application
3-D image processing
Perception optics
Stereopsis and hyperstereopsis video display
Binocular view image

ALGORITHM AND INTELLIGENT RECOGNITION

Depth map reconstruction
3-D shape measurement
Image recognition
Music tuning
Music recognition

FINACIAL MODELING AND ANALYSIS

Market modeling, simulation and analysis;
Strategy development of commodity and stock trading;
Software implementation for algorithms or procedures of a trading strategy.

THE SERVED COMPANIES AND PROFEESIONAL ORGANIZATIONS

• Seagate Technology, Bloominton, Minnesota
• Fiberspace Inc, Woodland Hills, California
• Optical Physics Company, Calabasas, CA, for project of
• _Northrop Grumman Space Technology, El Segundo, California
• _Raytheon, El Segundo, California
• Trex Enterprises, San Diego, California, for project of
• _AirForce, Albuquerque, New Mexico
• University of California at Los Angeles, California
• California State University, Northridge, California

CONSULTING FEE AND TERMS

The process of generating a project with 4Dperception involves 4 steps:

(1) Write a request-for-proposal (RFP) under a non-disclosure agreement and send to 4Dperception by email consulting@4Dperception.com. In the RFP, the scope of the project is outlined. The RFP should describe, in details, the mission of project, and the existing problems or difficulties. In addition, it should attach the acceptable cost, limitations, and preferences if any.

(2) To improve efficiency, before the first meeting, 4D perception will read and fully understand the mission of the project, and prepare some questions regarding the unclear issues if any. Then we send the agreement-signature with these questions back (by both fax and post mail), and get ready for the first meeting for both sides if necessary.

(3) 4D perception then generates a project proposal with estimates of time and material expenses. We provide quota of fixed consulting cost which is based on the rate between $75/hour to $120/hour depending on the time limitation or priority, plus material cost if any.

(4) After acceptance of the proposal, the project is monitored with regular meetings until completion of the project.

Material purchased for projects are subject to our consulting overhead rate. Our project proposal reflects our best estimation of time and materials, however proposals are only estimates. Customers could provide feedback so that 4D perception could make a best effort to make our customers satisfied with the cost and service quality. Traveling outside California is additional.

Terms for all payments are net 30 days or negotiable. If the duration of a project is less 30 days, the billing occurs at the completion of the project, otherwise billing occurs monthly as measured from the start of the project.