Abstract: Provided is an electronic coupon system capable of saving, in a mobile information terminal, electronic coupons having high likelihood of being used by a user, from among electronic coupons delivered by digital broadcast radio waves, whereby the user can use the electronic coupons without forgetting. The electronic coupon system (10): automatically obtains filter information from operation information, etc., for a broadcast reception terminal (100) or a mobile information terminal (200); extracts, from a lot of electronic coupons, only electronic coupons that have high likelihood of being used by the user; and saves them in the mobile information terminal (200) of the user. If the user approaches a store (14) where an electronic coupon can be used, an electronic coupon available at the store (14) is transmitted from a store coupon information processing terminal (300) to the mobile information terminal (200), and the user can use the electronic coupon without forgetting.

Abstract: A synchronism detection and demodulating circuit includes: a circuit for frequency dividing the regenerative clock in an irregular manner, a circuit for reading out the input data in a special manner based on the clock and producing data that provides information about the readout data, and a circuit for deleting unnecessary data from the readout data based on the data providing the information.

Abstract: An output controlling device for reducing a processing time and substantially reducing erroneous determinations. In an image recording apparatus or the like, when a control language describing input data sent from a higher level apparatus is determined, determining rules set for respective control languages are consecutively applied. Since an optimum determining rule can be applied with respect to each control language, it is possible to simultaneously attain a reduction in the processing time and a lowering of the possibility of erroneous determination as compared with a case where the same determining rule is applied uniformly. In addition, if command groups are classified, and different determining rules are used for respective groups, the case is equivalent to a case where a plurality of determining rules are applied with respect to each control language, so that a further reduction in the processing time and a further lowering of the possibility of erroneous determination can be attained.