Information signal reproducing apparatus having means for tracking control

An information signal reproducing apparatus for reproducing digital information signals from a recording medium on which a multiplicity of parallel tracks are formed, said digital information signals are recorded in synchronized block units each including information codes and synchronization codes and composed of a predetermined amount of data, comprising:

• (a) head means for tracing said recording medium so as to reproduce signals, said head means including at least one rotary head;
• (b) conveying means for conveying said recording medium in a direction crossing said tracks;
• and
• (c) speed control means for controlling a conveying speed of said recording medium by said conveying means at a speed at which only a predetermined number of the synchronized blocks are reproduced from one of the tracks among a number of synchronized blocks, the speed being determined independently of a speed at which the recording medium is conveyed while the digital information signals are recorded.

An information signal reproducing apparatus for reproducing information signals from a recording medium on which plural kinds of pilot signal components are recorded on a multiplicity of parallel tracks together with said information signals, comprising:

• (a) head means for tracing said recording medium so as to reproduce signals, said head means including first and second heads which trace adjacent tracks;
• (b) producing means for producing a first tracking error signal and a second tracking error signal, the first tracking error signal being indicative of a tracing position of the first head from one of adjacent i number of tracks formed in succession, the second tracking error signal being indicative of a tracing position of the second head from the one of the i number of tracks;
• and
• (c) control means for controlling a relative position between said recording medium and said head means by selectively using the first tracking error signal and the second tracking error signal so that the first and second heads are controlled to trace on one of j number of tracks formed in succession, where i and j are integers and j is greater than i.

An information signal reproducing apparatus for reproducing information signals from a recording medium on which plural kinds of pilot signals and track information relating to a position of a track are recorded on parallel tracks together with the information signals, comprising:

• (a) head means for tracing the recording medium so as to reproduce signals, said head means including first and second heads which concurrently traces adjacent tracks;
• (b) producing means for producing a first tracking error signal and a second tracking error signal, the first tracking error signal being indicative of a tracing position of the first head from one of the tracks, and the second tracking error signal being indicative of a tracing position of the second head from the one of the tracks;
• and
• (c) control means for controlling a relative position between the recording medium and said head means by selectively using the first and second tracking error signals based on the track information reproduced by said head means.

An information signal reproducing apparatus for reproducing information signals from a recording medium on which plural kinds of pilot signals are recorded on parallel tracks together with the information signals, comprising:

• (a) head means for tracing the recording medium so as to reproduce signals, said head means including first and second heads concurrently tracing adjacent tracks among the tracks of the recording medium;
• (b) producing means for producing a tracking error signal;
• (c) supply means for alternately supplying signals reproduced by the first and second heads to said producing means;
• and
• (d) control means for controlling a relative position between the recording medium and said head means by using the tracking error signal.