iPhone Forensics

2020 ◽  
pp. 308-324
Author(s):  
Nilay R. Mistry ◽  
Binoj Koshy ◽  
Mohindersinh Dahiya ◽  
Chirag Chaudhary ◽  
Harshal Patel ◽  
...  
Keyword(s):  
Personal Computer ◽  
Flash Memory ◽  
Forensic Investigation ◽  
Recent Past ◽  
Direct Extraction ◽  
Memory Chip

Smartphone usage has increased in the recent past and has become an extension of the personal computer, so has the complexity of forensic investigation. Vital information on these devices makes them more critical especially when it is part of investigative evidences. The challenge here is the extraction of data, especially when the phone is logically or physically damaged. Chip-off is a niche technique, involving removal of Flash Memory chip with due sophistication, this then is subjected to direct extraction and analysis. Apple iPhones are robust and well locked; the study performed chip-off on model A1203 that revealed vital forensic evidences.

iPhone Forensics

2016 ◽  
Vol 10 (3) ◽  
pp. 10-24
Author(s):  
Nilay R. Mistry ◽  
Binoj Koshy ◽  
Mohindersinh Dahiya ◽  
Chirag Chaudhary ◽  
Harshal Patel ◽  
...  
Keyword(s):  
Personal Computer ◽  
Flash Memory ◽  
Forensic Investigation ◽  
Recent Past ◽  
Direct Extraction ◽  
Memory Chip

Smartphone usage has increased in the recent past and has become an extension of the personal computer, so has the complexity of forensic investigation. Vital information on these devices makes them more critical especially when it is part of investigative evidences. The challenge here is the extraction of data, especially when the phone is logically or physically damaged. Chip-off is a niche technique, involving removal of Flash Memory chip with due sophistication, this then is subjected to direct extraction and analysis. Apple iPhones are robust and well locked; the study performed chip-off on model A1203 that revealed vital forensic evidences.

The Application of Flash Memory Chip in Airplane Test Data Acquisition System

2011 ◽  
Vol 9 (4) ◽  
pp. 1453-1457
Author(s):  
Xuehua Song ◽  
Hesheng Wu ◽  
Min Lu ◽  
Yinnan Yuan ◽  
Meizhen Chen
Keyword(s):  
Data Acquisition ◽  
Test Data ◽  
Flash Memory ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Memory Chip

Two Technological Fables

1989 ◽  
Vol 36 (8) ◽  
pp. 50-51
Author(s):  
Laura Forish-Ferguson
Keyword(s):  
Personal Computer ◽  
School Curriculum ◽  
Recent Past ◽  
Experienced Teacher ◽  
Philosophical Position

An experienced teacher has either a philosophical position or a gut feeling that reveals a bias toward the “how to” or the “what” of any subject to be taught. These two positions are often mutually exclusive; and thus the process-content debate has a long history in education. A good twenty years have elapsed since the hand-held calculator added its challenge to the debate. In the recent past, the applications of the personal computer in the school curriculum have come under discussion.

Over-clocked SSD: Safely running beyond flash memory chip I/O clock specs

2014 ◽  
Author(s):  
Kai Zhao ◽  
Kalyana S. Venkataraman ◽  
Xuebin Zhang ◽  
Jiangpeng Li ◽  
Ning Zheng ◽  
...  
Keyword(s):  
Flash Memory ◽  
Memory Chip

scholarly journals Development of a Datalogger for Submarine Glider: Integration of Fault-Tolerant Software Layers

2021 ◽  
Vol 9 (12) ◽  
pp. 1352
Author(s):  
Dagoberto De León-Gordillo ◽  
Noé Amir Rodríguez-Olivares ◽  
Leonardo Barriga-Rodríguez ◽  
José Luis Sánchez-Gaytán ◽  
Jorge Alberto Soto-Cajiga ◽  
...  
Keyword(s):  
Flash Memory ◽  
Error Control ◽  
Fault Tolerant ◽  
Sensor Data ◽  
Bch Code ◽  
Calibration Data ◽  
Nand Flash ◽  
Nand Flash Memory ◽  
Marine Fauna ◽  
Memory Chip

Submarine gliders are specialized systems used in applications such as environmental monitoring of marine fauna, in the oil industry, among others. The glider launch and capture is a costly process that requires substantial technological and human resources, so the orderly and error-free storage of data is of fundamental importance due to the subsequent analysis. The amount of information being obtained from the seabed is increasing, this leads to the need to develop robust and low-cost ad-hocsystems for this type of application. The challenge is the integration of the different software layers in the storage system because the monitored variables must be ordered according to different glider operations such as calibration data update and navigation. Additionally, to avoid data corruption in the memory chip, error control coding must be used. The goal of this paper is to present a novel design of different layers of software integrated into a datalogger: reception, error control, and storage logic for the different glider operations. The design of the datalogger is based on a NAND flash memory chip and an MSP430 microcontroller. To correct bit-flipping errors, a BCH code that corrects 4 errors for every 255 bits is implemented into the microcontroller. The design and evaluation are performed for different glider operations, and for different lengths and correction capabilities of the BCH module. A test to calculate the storage time has been carried out. This test shows that in the case of 256 bytes per sample, at 30 samples per minute, and 1 GB of storage capacity, it is possible to collect data from the glider sensors for 84 days. The results obtained show that our device is a useful option for storing underwater sensor data due to its real-time storage, power consumption, small size, easy integration, and its reliability, where the bit error rate BER is of 2.4 ×10−11.

Bi-axial fracture strength characteristic of an ultra-thin flash memory chip

2012 ◽  
Vol 22 (10) ◽  
pp. 105014 ◽  
Author(s):  
Eun-Beom Jeon ◽  
Jae-Dong Park ◽  
Jung Han Song ◽  
Hye Jin Lee ◽  
Hak-Sung Kim
Keyword(s):  
Strength Characteristic ◽  
Fracture Strength ◽  
Flash Memory ◽  
Memory Chip ◽  
Axial Fracture

Quantitative parallel EELS spectrum imaging developed as a new tool in AEM

1992 ◽  
Vol 50 (2) ◽  
pp. 1202-1203
Author(s):  
Gianluigi Botton ◽  
Gilles L'espérance
Keyword(s):  
Statistical Analysis ◽  
Spatial Resolution ◽  
Personal Computer ◽  
Systematic Study ◽  
Present Author ◽  
Chemical Elements ◽  
Detection Limits ◽  
Research Groups ◽  
Quantitative Performance ◽  
Spectrum Imaging

As interest for parallel EELS spectrum imaging grows in laboratories equipped with commercial spectrometers, different approaches were used in recent years by a few research groups in the development of the technique of spectrum imaging as reported in the literature. Either by controlling, with a personal computer both the microsope and the spectrometer or using more powerful workstations interfaced to conventional multichannel analysers with commercially available programs to control the microscope and the spectrometer, spectrum images can now be obtained. Work on the limits of the technique, in terms of the quantitative performance was reported, however, by the present author where a systematic study of artifacts detection limits, statistical errors as a function of desired spatial resolution and range of chemical elements to be studied in a map was carried out The aim of the present paper is to show an application of quantitative parallel EELS spectrum imaging where statistical analysis is performed at each pixel and interpretation is carried out using criteria established from the statistical analysis and variations in composition are analyzed with the help of information retreived from t/γ maps so that artifacts are avoided.

The quantitative comparison of experimental and simulated diffraction contrast images

1995 ◽  
Vol 53 ◽  
pp. 102-103
Author(s):  
Stuart McKernan
Keyword(s):  
Image Processing ◽  
Personal Computer ◽  
Close Agreement ◽  
Quantitative Comparison ◽  
Image Simulation ◽  
Computing Power ◽  
Diffraction Contrast ◽  
Simulated Images ◽  
Made In

For many years the concept of quantitative diffraction contrast experiments might have consisted of the determination of dislocation Burgers vectors using a g.b = 0 criterion from several different 2-beam images. Since the advent of the personal computer revolution, the available computing power for performing image-processing and image-simulation calculations is enormous and ubiquitous. Several programs now exist to perform simulations of diffraction contrast images using various approximations. The most common approximations are the use of only 2-beams or a single systematic row to calculate the image contrast, or calculating the image using a column approximation. The increasing amount of literature showing comparisons of experimental and simulated images shows that it is possible to obtain very close agreement between the two images; although the choice of parameters used, and the assumptions made, in performing the calculation must be properly dealt with. The simulation of the images of defects in materials has, in many cases, therefore become a tractable problem.

Sign in / Sign up

Export Citation Format

Share Document