Abstract: This device attaches to the head of an existing golf club (16) and contains two bright Light Emitting Diodes (LEDs) (11 and 26) to show the path of the club head during practice swings. The LEDs are of different color and are oriented on a line parallel to the direction of swing. This allows the golfer to also see whether the club head was twisted during the swing, and if so, to see the direction of twist. Each LED is independently switched and controlled for brightness by its own potentiometer (12 and 27). A battery (17) is contained within the device. The device is attached to a golf club by an EPDM sleeve (15) which pulls onto the club head and by hook and loop material (19) on both the sleeve and the device. A safety loop (14) would keep the device from flying off the club head if it was incorrectly attached.

Abstract: A method for transferring data between a first and second memory in which the first memory is divided into a number of partitions. Stored in the first memory are a plurality of first data bits locating the begin and end block of data space in each of the partitions which has been allocated for storage of data therein. In the begin block of each partition, there is stored second data bits identifying the number of freespace maps for its associated partition together with the freespace maps locating the data that is to be transferred to the second memory. Using the information contained in the freespace maps, a processor transfers the data from the second memory to the first memory.