Apparatus and method for synchronization and error detection of received digital data bursts in a TDM/TDMA system

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The Northern Telecom Limited patent solves the following problem:

It is well known in the art of doing joint simultaneous and error detection / error correction, for example as described in the "Background of the Disclosure" in US Pat. No. 5,084,891, by Ariyavisitakul et al., Issued Jun. 28, 1992, Bell Communications Research, Inc. Ariyavisitakul et al. teach a technique for the joint conduct of both small and fault detection in a TDMA burst received digital data. The technique Ariyavistakul et al. trust in order to further and remove the marker fragments from a received the word with a series of polynomial division with a two-pass approach using a common generator polynomial order determining the time and incorrect syndrome values ​​for this meeting.

Our analysis of this patent is as follows:

Northern Telecom Limited’s patent US 5651015 A deals with Apparatus and method for synchronization and error detection of received digital data bursts in a TDM/TDMA system.
A method and apparatus for simultaneously small and error detection using a small rotation of a received burst data and division by a polynomial generator to produce a syndrome. Syndrome corrector justice measures and circuitry to determine the slight slippage and to correct the syndrome for slippage to generate an error syndrome. If no error, the slightest slippage rate used to adjust the received data burst.

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Pseudorandom composition-based cryptographic authentication process

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The United Technologies Automotive, Inc. patent solves the following problem:

The present invention relates generally to cryptography, and in particular a way of encrypting digital information giving it more difficult to decipher the use of computer-assisted techniques. Although the invention is applicable to a wide range of applications, it finds particular utility in an encryption system with keyless entry, keyless entry for automotive applications.

Our analysis of this patent is as follows:

United Technologies Automotive, Inc.’s patent US 5649014 A deals with Pseudorandom composition-based cryptographic authentication process.
The pseudorandom process iteratively applied to a process chosen CRC encryption to encrypted information. The encryption process is chosen by trying one of the numbers containing the number of encrypted. A first encryption process used when trying digit is a 1; a second encryption process used when trying digit is a 0. process repeated a plurality of times, eg once for each digit in the number of encrypted, resulting in a highly encrypted price not easily reverse engineered or selected known plaintext attack.

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Dump truck with mounted comminuting device

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The Witte; Joseph H. patent solves the following problem:

The present invention relates in general to mechanical comminution such as chippers and shredders commonly used for the comminution of leaves, branches and other such material. Particularly, the present invention relates to the comminution device mounted on a truck, which automatically comminuted material hidden inside the truck bed.

Our analysis of this patent is as follows:

Witte; Joseph H.’s patent US 5645235 A deals with Dump truck with mounted comminuting device.
A comminution system used in conjunction with a dump tuck vehicle to automatically comminuted debris deposited in the dump bed of the vehicle. The comminution device is a self-powered assembly that rides on rails mounted on dump truck vehicle. The barriers are mounted on either side of the dump bed of the vehicle and supporting comminution device directly on the dump bed. The comminution device is free to move along the length of the barrier. As a result, the comminution device can be selectively positioned at different locations in the dump bed, thus filling in different places in the dump bed in a controlled and even manner. Barriers also mounted on dump truck vehicle on the passenger cab, where the passenger cab barrier alliance with the dump barrier bed when the dump bed flat. As a result, the comminution device can be selectively moved to the beam dump bed and into the barrier passenger cab. Once the comminution device is moved to the rails passenger cab, the dump bed are free to dump his load of comminuted debris.

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