Abstract: A system is provided for receiving R, G and B data in digital form, such as produced by an artist using a "paint" program on a monitor screen, and converting such data to CMYB data for printing. The system independently determines tone correction values for grey balance control and color values and combines such values to produce a highly accurate reproduction of what is viewed on a screen. Calibration procedures are provided which rapidly converge and which allow quick and accurate adjustment, such as may be required to match a particular monitor and printing inks.

Abstract: A dictation-transcription method and system in which dictated material and instructions concerning the dictated material for use during the transcribing of the dictated material are separately recorded on a recording medium along with indexing signals which include indexing signals identifying the location on the recording medium of the separately recorded instructions concerning dictated material. The recording system and method permit the recording of instructions at any location on the recording medium relative to the dictated material including a location along the length of a recording medium which is the same as the location of the dictated material to which an instruction relates without obliterating any of the dictated material, while at the same time preventing the inadvertent placing of the recording system in a recording mode of operation following the recording of an instruction which would cause dictated material to be inadvertently obliterated.

Abstract: A dictation-transcription method and system in which dictated material and instructions concerning the dictated material for use during the transcribing of the dictated material are separately recorded on a recording medium along with indexing signals which include indexing signals identifying the location on the recording medium of the separately recorded instructions concerning dictated material. The recording system and method permit the recording of instructions at any location on the recording medium relative to the dictated material including a location along the length of a recording medium which is the same as the location of the dictated material to which an instruction relates without obliterating any of the dictated material, while at the same time preventing the inadvertent placing of the recording system in a recording mode of operation following the recording of an instruction which would cause dictated material to be inadvertently obliterated.

Abstract: A dictation system having means for providing a signal for indicating when dictation which the system has been made operative to record on a recording medium is not being recorded on the recording medium because of a malfunction of the system or the improper operation of the system. The system includes means for providing a signal when the audio input to the dictation system and the audio input of dictation recorded on the recording medium are not in a predetermined relationship and means for providing said signal when dictation which the system has been made operative to record on the recording medium is absent from the recording medium for a predetermined length of time.