Abstract: A short game training device 10 for use with a golf club comprises an two-axis linear accelerometer 12, a fastener 50 for removably attaching the accelerometer to the golf club head H so that the X and Y axes of the accelerometer 12 are disposed approximately parallel with the club face and oriented at approximately a forty-five degree angle with respect to a substantially vertical plane V containing the aim line A established when addressing the golf ball G with the club face aligned perpendicularly to the aim line A, a detectable alarm 18, and a microprocessor 14 for calculating differences in forces measured by the X and Y axes during a timed interval subsequent to positioning the club and for activating the alarm 18 when the differences exceed a selected threshold.

Abstract: A short game training device 10 for use with a golf club comprises an two-axis linear accelerometer 12, a fastener 50 for removably attaching the accelerometer to the golf club head H so that the X and Y axes of the accelerometer 12 are disposed approximately parallel with the club face and oriented at approximately a forty-five degree angle with respect to a substantially vertical plane V containing the aim line A established when addressing the golf ball G with the club face aligned perpendicularly to the aim line A, a detectable alarm 18, and a microprocessor 14 for calculating differences in forces measured by the X and Y axes during a timed interval subsequent to positioning the club and for activating the alarm 18 when the differences exceed a selected threshold.

Abstract: A user interface having a plurality of user interface elements for marking, finding, organizing, and processing data stored in a computer system. Each element typically has an appearance which is related to the data or function the element is designed to represent or perform. The elements may simply mark data within the document, or may be programmed to cause the computer to perform some function in association with the marked data. Methods of marking data and searching the memory for marked data by use of switches or buttons is disclosed. Further, useful elements for systems such as computerized camera systems, portable multimedia systems, and remote controls are also described. Some of the user interface elements of the present invention may have an appearance and/or functionality dependent upon the context in which the element is used, and/or dependent upon the user's identity.