Abstract: A small hand-held electronic device that contains all of the normally interesting statistics relating to baseball or football players and teams. The user interface comprises a visual display and a keyboard having alphabet keys, an ENTER key, cursor keys for scrolling, and selection keys for selecting the statistic of interest. The system electronics includes a microprocessor and a large solid state non-volatile memory array containing the detailed statistical records. In a baseball embodiment, the user turns on the device and selects a player or team by entering two or three characters of the name via the alphabet keys. A series of choices are displayed on the screen and the user scrolls through the list using the cursor keys (up and down). When the desired player or team is displayed, the user presses the appropriate selection key. The device displays the cumulative statistics; previous year statistics are displayed by the use of the cursor keys.

Abstract: A small hand-held electronic device that contains all of the normally interesting statistics for a baseball player or team. The user interface comprises a visual display and a keyboard having alphabet keys, an ENTER key, cursor keys for scrolling, and statistic keys for selecting the statistic of interesting. The system electronics includes a microprocessor and a large solid state non-volatile memory array containing the detailed statistical records of hundreds of baseball players. The user turns on the device and selects a player or team by entering two or three characters of the name via the alphabet keys. A series of choices are displayed on the screen and the user scrolls through the list using the cursor keys (up and down). When the desired player or team is displayed, the user presses the appropriate statistic key. The device displays the cumulative statistics; previous year statistics are displayed by the use of the cursor keys.

Abstract: A method and apparatus provide for the elimination of any net DC component from the transmission of binary data sequentially in successive clocked bit cells of a transmission channel wherein logical first bit states, e.g., 0's, are normally transmitted as signal transitions relatively early in respective bit cells, preferably at cell edge, and logical second bit states, e.g., 1's, are normally transmitted as signal transitions relatively late in respective bit cells, preferably at mid-cell, and any transition relatively early in a bit cell following a transition relatively late in the next preceding bit cell is suppressed.

Abstract: An audio signal is sampled, quantized and the values are stored in a specific digital data block/sub-block format on alternate tracks of a recording medium. The block/sub-block format provides an inherent simplification of error correction techniques, and consists of dividing the digital audio data into groups of digital words, and recording alternate words on separate tracks in the medium. Cyclic redundancy check characters, synchronization, and parity information are selectively interspersed with the data to define sub-blocks which in turn are combined into separate blocks of the block/sub-block arrangement. On reproduce, any errors, dropouts, etc., are detected and corrected or concealed to reconstitute the original audio signal. Editing is facilitated by the separated block arrangement which allows entering and exiting the record mode without destroying any data.