An erroneously recorded image among recorded images on a recording medium is corrected by a correction sheet comprising an adhesive layer on a support. The adhesive layer is heated to develop an adhesive force and caused to adhere to the error image and peel the error image when the correction sheet is separated from the recording medium. The adhesive layer comprises a laminate structure including a separation prevention layer and an upper layer, and the separation prevention layer is in charge ...

A correction circuit for correcting the frequency of the output pulses produced by a gas flowmeter in dependence on the temperature of the gas comprises a control input for receiving a voltage representative of the difference between the temperature of the gas and a reference temperature. A voltage-controlled oscillator, operative during fixed short periods initiated by each flowmeter pulse, produces auxiliary pulses at a rate dependent on the voltage at the control input, and the auxiliary puls...

In a twin tube recording CRT system, apparatus is provided for accurately aligning the line scan trace of the two tubes with respect to each other. The positioning voltage applied to the vertical deflection plates of the two tubes is compared in a comparator network. When a substantial identity of the compared signals is detected by the comparator network, suitable indicating devices, such as LED's, are actuated to indicate the proper alignment, without the need for visual reference to the face ...

An electronic time-piece is advanced by electronic pulses which are generd by a fixed frequency signal source. In order to correct the indication of the time-piece, a circuit is provided for adding or deleting pulses to thereby increment or decrement the indication. One push-button switch is provided for both adding or subtracting seconds from the indication displayed by the time-piece. Each depression of the push-button adds one second to the indication. When the user depresses the push-button ...

Correction compositions for the masking of erroneous typed images preliminary to the typing of correct images thereover, characterized by the presence of a volatile solvent mixture having a predetermined evaporation rate at ordinary room temperatures, a high flash point and providing vapors which are non-flammable and non-toxic as a result of drying of the compositions under normal office conditions. The solvent mixtures used according to the present invention comprise methyl chloroform and perc...

In a dual beam atomic absorption spectrometer having a dedicated microcomputer, improved calibration constants are obtained from either two or three known concentration values by finding a number of constants equal to the number of samples such that when the excess over one of the absorbance of that sample of known concentration multiplied by a second constant is divided into the first constant times the absorbance raised to a power one less than the number of samples or in the case of three sam...

A radio receiver includes apparatus for correcting phase and frequency offsets in a digitally modulated carrier signal. The receiver includes processing circuitry which outputs a baseband signal at point. The circuitry includes a local oscillator generating a signal intended to have a phase and frequency related (e.g. substantially equal) to the carrier signal. The baseband signal from the circuitry is input to a demodulator which generates a signal in the form of a sequence of digits correspond...

A correction buffer for a typing system in which the correction buffer has a group of records, each record corresponding to an incremental distance on the medium which is printed upon. The records in the correction buffer contain information concerning characters entered through a keyboard by a typist including designations of entered characters and character attributes.

A lift-off tape capable of being used many times which comprises a foundation and an adhesive layer provided on one major surface of the foundation, said adhesive layer containing a plasticizer capable of plasticizing a polyamide resin which is a main component of the vehicle of a correctable ink. The lift-off tape can be used many times to remove erroneous typed impressions of a correctable ink which contains a polyamide resin as a main component of the vehicle thereof.

A misregistration correction system that corrects for artifacts generated by the movement of a subject being imaged during the interval between temporally separated images. The system reduces the effects of secondary characteristics on the determination of a vector between a point on a first image and a point on a second image, which vector delineates the motion of the subject.