Wireless Microphone System Camcorder

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The system supports multiplayer gameplay via a local wireless connection or over the Internet. Expanding upon the connectivity of the Nintendo DS, the Nintendo 3DS features an "always on" background connectivity system that trademarks suggested was named "CrossPass", which can automatically seek and ... Read Article

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It uses a relay recording system, which automatically switches Audio is recorded via a two-channel stereo microphone.

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The arrival of Version 3.0 firmware for the ALEXA has opened up a wealth of new options, one of the most notable being the ability to record audio to SxS cards. Since audio input is via five-pin XLR female, AbelCine has specially constructed cables to allow analog line-level audio to be input, while the A/D converter in the ALEXA will convert this signal to 24 bit / 48 kHz PCM audio. As of V3.0, an audio window can now be accessed to set level -- this window allows for MANUAL or UNITY operation. Channel 1 and 2 can be directed to either left or right, and the sound roll can be manually entered as well. Reference marks are located at -20 and -18db for US or European recording. Watch my video to learn more.

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Connectivity. The Vixia HF R21 offers a built-in HDMI output for connecting the camera and a cable is included. ... Read Article

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The Betacam SX camcorder range offers an unprecedented combination of advantages for ENG and EFP applications. In size and weight, they are amazingly compact and light incorporating a built-in Colour Playback capability, optional Slot-in Wireless Microphone Receiver and Internal Light System to improve ... Read Content

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5-5-3 Attaching a UHF Portable Tuner (for a UHF Wireless Microphone System) ..5-22 camcorder, connect this connector to the time code input lock connector ... Fetch This Document

E Model Chinese Model Korea Model - Welcome To Microphones
WIRELESS MICROPHONE US Model Canadian Model AEP Model E Model Chinese Model Korea Model operating time of the camcorder’s battery is reduced by about 20 ...

I Control Your Code [27C3]

I Control Your Code
Attack Vectors Through the Eyes of Software-based Fault Isolation

Unsafe languages and an arms race for new bugs calls for an additional line of defense in software systems. User-space virtualization uses dynamic instrumentation to detect different attack vectors and protects from the execution of malicious code. An additional advantage of these virtualization systems is that they can be used to analyze different exploits step by step and to extract the exploit code from a running program.

This talk explains the concept of different attack vectors (stack buffer overflows, format string attacks, return to libc attacks, race attacks / TOCTTOU, integer overflows, heap buffer overflows, and code anomalies). For each of these attack vectors we show possible exploits and explain how the virtualization system is able to detect and prevent the exploit.

User-space virtualization uses a binary translation framework to instrument all running code. The instrumentation works like an additional virtualization layer and makes it possible to observe any changes to the runtime datastructures (code and data) of a running program. We use fastBT to instrument and analyze different exploitable programs. The added instrumentation detects changes in runtime layout and stops the program whenever exploit code is about to be executed.

This talk presents different classes of exploits that can be observed in a dynamic instrumentation system. The exploits are analyzed and different security strategies are discussed. We then show how the instrumentation framework can implement an online protection mechanism against each class of attack vectors.

Observable Attack Vectors

* Stack Overflow A limited buffer is (over) flown with user-data and over writes data on the stack (e.g., the return instruction pointer).
* Format String Attack An attack can write to an arbitrary address (e.g., the return instruction pointer or the address of a library function) if unvalidated user input is passed directly to the printf function.
* Return to libc Attack This attack prepares multiple stack frames that execute code sequences in libraries. The stack frame can be constructed so that (almost) arbitrary code is executed.
* Race Attacks / TOCTTOU Time-of-check-to-time-of-use race conditions exploit the fact that they can change values on the stack after they are checked but before they are used in the program or kernel.
* Integer Overflow Overflows can be triggered by using a negative integer value instead of an unsigned value.
Heap Overflow A heap buffer overflow is used to overwrite function pointers or data from the memory allocator to trigger execution of arbitrary code.
* Code Anomalies x86_64 code is backward compatible to ia32 and in modern operating systems x86_64 and ia32 code can be mixed. The mix of different system calls makes it possible to break out of sand boxes that are not aware of all possible combinations of system calls.

The exploits are detected generally whenever the program branches to the injected code or to the constructed code fragments. The program is interrupted and a debugger can be attached to analyze the state of the program. TOCTTOU attacks can be detected by observing the threads and using a specific system call architecture.

Conclusion Dynamic instrumentation is an important tool to prohibit, detect, and analyze different attack vectors to running programs. Additional instrumentation guards can be used to better understand exploits. The additional layer of virtualization implemented through dynamic instrumentation can be used to detect and log bugs and is an additional line of defense against new exploits.

Related Work A detailed discussion of related work is in the paper. These references here are for informational purposes only (to show how this talk was inspired) and not complete.

Speaker: Mathias Payer
EventID: 4149
Event: 27th Chaos Communication Congress (27C3) by the Chaos Computer Club [CCC]
Location: Berlin Congress Center [bcc]; Alexanderstr. 11; 10178 Berlin; Germany
Language: english
Start: 28.12.2010 14:00:00 +01:00
License: CC-by-nc-sa

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Car Video Cameras - Eastern Michigan University
camcorder that the police officer in the passenger seat would hold to document pertinent The typical ICV camera system consists of a camera mounted within the patrol car, a wireless microphone worn by the police officer, a trunk mounted recorder, and a control ... Read Document