Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that battery power wastage is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that battery power wastage is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that the waste of battery power is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that the waste of a power is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

Abstract: There is disclosed a handoff control method for registering a CDMA mobile station in such a way that battery power wastage is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

Abstract: An impact dot printer has a print head which reciprocates back and forth in front of a rotationally driven platen to print dot matrix characters on a recording medium. The print head includes a single print hammer actuated by an electromagnetic driver. A succession of print timing signals are produced in synchronism with the rotational speed of the platen, and a home signal is generated each time the print head leaves its home position during the printing of each line. A control circuit initiates the printing of each line in response to the first print timing signal produced after generation of the home signal and controls the application of driving pulses to the electromagnetic driver so as to synchronize the actuation of the print hammer with the platen rotation.

Abstract: A cassette type ink ribbon device comprises a pair of cassette cases mountable in spaced-apart non-touching relation on a printing apparatus. An endless ink ribbon extends through the pair of cassette cases. A transfer roller and an ink roller are both rotatably mounted within one of the cassette cases and are in contact with one another to replenish ink onto the ink ribbon. A slidable tensioner is disposed within the other cassette case for applying a tensioning force to the ink ribbon. The tensioner comprises a slidable guide body having a guiding surface portion in sliding contact with the inner side of the ink ribbon, a slideway within the other cassette case for slidably supporting the guide body, and a biasing spring disposed within the other cassette case for biasing the guide body along the slideway to apply a tensioning force to the ink ribbon.

Abstract: A printing head adapted to be moved for scanning in a direction perpendicular to the direction of feed of a paper is provided with a sole printing element (printing hammer) adapted to be driven in an impacting manner by an electromagnetic driving device. A platen disposed to oppose to the printing head is provided with a plurality of projections formed on the outer peripheral surface thereof and extending substantially in parallel with the axis thereof. Each of the projections being adapted to oppose to the printing element in a crossing relation to the latter when it is brought to the position ahead of the printing element as a result of rotation of the platen. As the printing element collides with the projection while the platen is rotated, a dot is formed on the recording paper at the position of crossing between the printing element and the projection, so that various patterns such as letters, numerals, symbols, pictures and so forth are printed at a high speed by a sole printing element.

Abstract: A paper tractor for feeding paper of different widths in printers and the like comprises a rotationally driven shaft having mounted thereon a sprocket wheel which engages in perforations in a length of paper to effect lengthwise feeding of the paper in response to rotation of the sprocket wheel. The sprocket wheel is mounted on the drive shaft to undergo rotational movement therewith and is mounted on the drive shaft to undergo axial sliding movement therealong to enable axial positioning of the sprocket wheel to accommodate paper of different widths. The drive shaft has a polygonal cross-section, and the sprocket wheel has a center tubular sleeve formed of plastic and configured to be slideably inserted over the drive shaft so that rotational movement of the drive shaft is transmitted to the sprocket wheel.

Abstract: A cassette type ink ribbon device for use in printing apparatus comprises a pair of cassette cases releasably connected together by mutually engaging pawls. The connected together cassette cases contain ink and transfer rollers for inking an ink ribbon, and a tensioner for applying a tensioning force to the ink ribbon. The tensioner comprises a slidable guide body having a cavity in which the slack part of the ink ribbon is stored, and a biasing spring which biases the guide body in a direction to apply the tensioning force to the ink ribbon. Both cassette cases may have the same shape and configuration thereby simplifying manufacturing costs.

Abstract: An intermittent paper feed mechanism comprises a driving wheel rotationally driven in an intermittent manner, a driven wheel disposed opposite to and rotated by the driving wheel, a stopper means for restricting the angle of rotation of the driving wheel and a coiled return spring for biasing the driving wheel in a direction opposite to its rotational driven direction. The driving and driven wheels, the stopper means and the return spring are coaxially mounted on a common shaft. The device of the invention enables a paper on which characters are printed by a printing head to be advanced at a high accuracy in an intermittent manner without using a stepping pulse motor.

Abstract: An apparatus for forming a character in which picture elements as indication elements are formed in the shape of a matrix to create a character, such as a letter, a numeral, a symbol or the like, in this case the magnifications of the character in both a longitudinal and a lateral direction are suitably increased or reduced and, in case the character has become obscure as a result of such enlargement, an interpolation is performed to the character to render it clear. The apparatus is used, for example, in the case of forming a character with printer.

Abstract: Between picture elements of a character, such as letter, numeral and symbol, which is formed of a pattern of the separate display picture elements, a display picture element for interpolation is formed in conformity with predetermined rules, so that the shape of the character as intended to be displayed has its naturalness held and that the character can be formed in a proper size.