Abstract: Informational data is efficiently recorded on a recording medium in response to an input signal containing information and pauses of different intervals. Information following each pause is captured for recording and space occupied on the recording medium for recording of the pauses is minimized. A stream of input data corresponding to the input signal is supplied by operation of a controller selectively to a first buffer and a second buffer arrangement. The input signal is also coupled to a record signal generating circuit that produces a record signal in response to an input signal having information of a certain duration, and produces a no-record signal in response to a pause in the input signal of a determined interval.

Abstract: A method of evaluating designated responses to a series of questions includes the steps of forming on a surface of a markable sheet a number of response mark guides, whereby responses to the questions can be designated by placing marks on or within selected ones of the response mark guides. The response mark guides are arranged at certain positions on the sheet to define arrays of a certain reference form, e.g., a clock face, and each of the response mark guides of each array is associated with a different possible response such as a number from 0 to 9, according to the reference form. Responses are evaluated by interpreting the marks in accordance with their positions as placed on or within the response mark guides of the arrays and according to a selected response key.

Abstract: An answer recording and score sheet device includes a markable sheet arrangement with at least one surface that has answer mark guide indicia. The guide indicia define sets of first positions at which marks can be selectively made by a respondent in response to corresponding questions. The sheet arrangement also has a surface on which a number of discriminable flag indicia are formed in a determined relation with respect to the first positions. The flag indicia serve to convey correct responses in accordance with a given test form or answer key, and are of such form as to enable rapid manual or electronic grading of the chosen responses.