Abstract:
Methods, apparatus, systems and articles of manufacture to determine and apply polarity-based error correction code are disclosed. In some examples, the methods and apparatus create an array by setting a first set of bit locations of a code word to have a first value and setting a second set of bit locations of the code word to have a second value different from the first value. In some examples, when the array satisfies a parity check, the methods and apparatus determine that bit locations having the first value from the array form a polarity-based error correction code.
Abstract:
Methods and apparatus to measure detect and correct errors in destructive read non-volatile memory are disclosed. In some examples, the method and apparatus determine, in response to stabilizing a power supply, a status signature stored in non-volatile memory. In examples wherein the status signature is not normal, the methods and apparatus decode an error correction code that is encoded in a destructive read non-volatile memory.
Abstract:
Methods and apparatus to measure and analyze vibration signatures are disclosed. In some examples, a meter is provided comprising a waveform generator to generate a waveform based on first distance measurements of an object. In some examples, the meter includes a waveform generator to determine a first vibration characteristic of the object based on the waveform. In some examples, the meter includes a comparator to compare the first vibration characteristic to a signature vibration characteristic of the object, the signature vibration characteristic of the object indicative of normal characteristics of the object. In some examples, the meter includes a reporter to, in response to determining the first vibration characteristic does not match the signature vibration characteristic, generate an alert.
Abstract:
A transducer system with transducer and circuitry for applying a pulse train at a single frequency to excite the transducer. The transducer is operable to receive an echo waveform in response to the pulse train. The system also comprises circuitry for determining a time of flight as between a first reference time associated with the pulse train and a second reference time associated with the echo waveform.
Abstract:
A system for error correction code (ECC) management of write-once memory (WOM) codes includes, for example, a controller for selecting between one of a WOM (Write-Once Memory) mode and an ECC (error correction code) mode. A codec is arranged to operate in the selected mode. The codec while operating in the ECC mode is arranged to identify a bit position of at least one bit error in response to ECC parity bits of a first received data word. The codec while operating in the WOM mode is arranged to receive a WOM-encoded word from an addressed location in a WOM device, to receive a second received data word to be encoded and written to the addressed location, and to generate WOM-encoded word for writing to the addressed location in the WOM device. The WOM-encoded word for writing to the addressed location is optionally ECC encoded.
Abstract:
Methods, apparatus, systems and articles of manufacture to determine and apply polarity-based error correction code are disclosed. In some examples, the methods and apparatus create an array by setting a first set of bit locations of a code word to have a first value and setting a second set of bit locations of the code word to have a second value different from the first value. In some examples, when the array satisfies a parity check, the methods and apparatus determine that bit locations having the first value from the array form a polarity-based error correction code.
Abstract:
In described examples, data are stored in a destructive read non-volatile memory (DRNVM). The DRNVM includes an array of DRNVM cells organized as rows of data. The rows of data are subdivided into columns of code word symbols. Each column of code word symbols is encoded to store an error correction code symbol for each column of code word symbols.
Abstract:
Methods, apparatus, systems and articles of manufacture to determine and apply polarity-based error correction code are disclosed. In some examples, the methods and apparatus create an array by setting a first set of bit locations of a code word to have a first value and setting a second set of bit locations of the code word to have a second value different from the first value. In some examples, when the array satisfies a parity check, the methods and apparatus determine that bit locations having the first value from the array form a polarity-based error correction code.
Abstract:
Methods, apparatus, systems and articles of manufacture to determine and apply polarity-based error correction code are disclosed. In some examples, the methods and apparatus create an array by setting a first set of bit locations of a code word to have a first value and setting a second set of bit locations of the code word to have a second value different from the first value. In some examples, when the array satisfies a parity check, the methods and apparatus determine that bit locations having the first value from the array form a polarity-based error correction code.
Abstract:
A system for write-once memory (WOM) code emulation of EEPROM-type devices includes, for example, a host processor for sending data words for storing in a WOM (Write-Only Memory) device. A host interface receives the data words for encoding by a WOM controller. An emulator programs the WOM-encoded data and an address identifier as an entry of the WOM device. The emulator overwrites previously programmed WOM-encoded data by searching entries of a current active page of a WOM device to locate a programmed WOM entry that includes the searched-for address identifier and the previously written WOM-encoded data word. When the previously written WOM-encoded word cannot be correctly overwritten, the contents of the second WOM-encoded word are stored in a new entry. When the current active page is substantially full, the new entry is stored a new page and the current active page is block-erased.