Abstract: A digital data recording/reproducing apparatus which divides each of information data pieces into a plurality of cells, further divides each of the cells into a series of a plurality of units, and records the units. The digital data recording/reproducing apparatus has means for recording a required time for reproduction until the head position of a unit is reached, with reference to the head position of an information data cell to which a cell belongs, as a unit start time, in addition to each of the units, and means for recording a cell start time (Ts) equal to a required time for reproduction until the head position of each of the cells is reached, and a required time for reproduction (Ps) of each of the cells in a management data region.

Abstract: An information recording apparatus (SS1) is provided with: a signal process device (72, 72A, 72B) for applying a predetermined signal process to record information to be recorded onto an information record medium (1: DVD) to thereby generate processed record information (Srv, Sra) comprising a plurality of information units (AAU, AF), which are set in advance; a divide device (72, 72C, 72D) for dividing the processed record information by each record unit (APT), which includes one or more information units and which is set in advance on the basis of the predetermined signal process; a multiplex device (72, 72E, 72F) for setting a start position of one or more information units within each record unit, on the basis of control information (Si) inputted from the external (ST, 71) to control a reproduction of the record information, generating start position information (200) indicating the start position and multiplexing the start position information with the processed record information for each record unit, t

Abstract: A transparent storage stable acidic beverage or other alimentary product containing casein phosphopeptide is obtained by reacting casein with trypsin, precipitating insoluble components at acid pH, adding a divalent cation such as calcium to the reaction medium, recovering the reaction product, and adding the casein phosphopeptide to a mixture to produce a beverage or product having beneficial solubilizing effects on calcium.

Abstract: An infrared and ultraviolet radiation absorbing glass suitable for use in building and vehicle windows, which comprises, on a weight basis, 68-74% of SiO.sub.2, 0.1-3.0% of Al.sub.2 O.sub.3, 8-11% of CaO, 2.0-4.5% of MgO, 11.5-16.0% of Na.sub.2 O, 0.5-3.0% of K.sub.2 O, 0.1-0.4% of SO.sub.3, 0.10-0.55% of total iron expressed as Fe.sub.2 O.sub.3, 0.2-0.6% of CeO.sub.2, 0.3-14 ppm of CoO and 5-20 ppm of Se. In the glass the ratio of ferrous iron to ferric iron is in the range from 0.17 to 0.55. The glass has a bronzy tint and is well balanced in visible light transmittance, infrared radiation absorption and ultraviolet radiation absorption, and a sheet of the glass can be easily tempered by a conventional method.

Abstract: An infrared and ultraviolet radiation absorbing glass suitable for use in building and vehicle windows, which comprises, on a weight basis, 68-74% of SiO.sub.2, 0.1-3.0% of Al.sub.2 O.sub.3, 8-11% of CaO, 2-4.5% of MgO, 11.5-16% of Na.sub.2 O, 0.5-3.0% of K.sub.2 O, 0.1-0.4% of SO.sub.3, 0.10-0.55% of total iron expressed as Fe.sub.2 O.sub.3, 0.2-0.6% of CeO.sub.2, 15-35 ppm of CoO and 2-18 ppm of Se. In the glass the ratio of ferrous iron to ferric iron is in the range from 0.17 to 0.55. The glass has a neutral grayish tint and is well balanced in visible light transmittance, infrared radiation absorption and ultraviolet radiation absorption, and a sheet of the glass can be easily tempered by a conventional method.

Abstract: An infrared and ultraviolet ray absorbing glass suitable for use in building and vehicle windows, which comprises, on a weight basis, 68-72% SiO.sub.2, 1.6-3.0% Al.sub.2 O.sub.3, 8.5-11.0% CaO, 2.0-4.2% MgO, 12.0-16.0% Na.sub.2 O, 0.5-3.0% K.sub.2 O, 0.08-0.30% SO.sub.3, 0.58-0.80% total iron expressed as Fe.sub.2 O.sub.3, 0.10-0.60% CeO.sub.2, 0.10-0.40% TiO.sub.2 and 5-350 ppm MnO. In the glass the ratio of ferrous iron to ferric iron is from 0.3 to 0.7. The glass has a greenish tint and is well balanced in visible light transmittance, infrared radiation absorption and ultraviolet radiation absorption. The glass can easily be produced as a sheet glass by the conventional float process without significantly varying the melting and refining operation conditions, and the glass sheet can readily be tempered by a conventional method.

Abstract: An infrared and ultraviolet radiation absorbing glass suitable for use in building and vehicle windows, which comprises, on a weight basis, 68.0-73.0% SiO.sub.2, 0.1-3.0% Al.sub.2 O.sub.3, 7.0-11.0% CaO, 2.0-4.2% MgO, 12.0-16.0% Na.sub.2 O, 0.5-3.0% K.sub.2 O, 0.02-0.30% SO.sub.3, 0.30-0.90% total iron expressed as Fe.sub.2 O.sub.3, 0.10-0.80% CeO.sub.2, 0-1.0% TiO.sub.2, 0-0.5% ZnO, 0-0.1% MnO and 0-0.01% CoO. In the glass the ratio of ferrous iron to ferric iron is from 0.8 to 2.5. The glass has a bluish tint and is well balanced in visible light transmittance, infrared radiation absorption and ultraviolet radiation absorption, and a sheet of the glass can easily be tempered by a conventional method. In producing this glass, it is favorable to use cullet of a frit glass in which the ratio of ferrous iron to ferric iron is from 2.0 to 5.0 as a part of a batch of glass compostion to be melted.

Abstract: An opposite-phase current source is improved by eliminating the conventionally employed current mirror circuits, and by instead using a pair of transistor current sources subjected to voltage feedback and emitter-connected via a resistor. A constant current source or sources are coupled to the opposite ends of the resistor or to a mid-point thereof.

Abstract: A circuit for preventing malfunction of a muting amplifier is provided. The circuit of a muting amplifier is composed a semiconductor integrated circuit which comprises a first lateral p-n-p transistor to receive an input signal applied to the base thereof and one or more second lateral p-n-p transistors serving as a constant current source and performs an amplifying operation during the conduction of the second lateral p-n-p transistors or is placed in a muting mode during the cutoff thereof, the circuit configuration of this invention is such that a third p-n-p transistor is provided in the vicinity of the first lateral p-n-p transistor and is so connected as to turn on the second lateral p-n-p transistors during the conduction of the third p-n-p transistor, wherein, when the input signal level becomes lower than the minimum potential in the integrated circuit, the third transistor is turned on by an n-p-n transistor, which works as a parasitic transistor.

Abstract: First and second rectangular signals which are 90.degree. out of phase with each other are derived by comparators and an RS flip-flop from a symmetrical triangular wave signal. The first rectangular signal is halved in frequency by a frequency divider, the output of which is supplied to an adder. The second rectangular wave signal is also delivered to the adder. An output from the adder is converted by a bandpass filter into a sine-wave subcarrier signal in synchronism with a stereo pilot signal in an FM stereo tuner. The first and second rectangular signals may be derived by a pair of D-type flip-flops from a pulse signal.

Abstract: Disclosed is an FM stereo demodulator in which components of the demodulated signal corresponding to odd harmonics of the subcarrier signal are eliminated.In order to prevent the production of odd harmonics, the multiplication between positive and negative sinusoidal subcarrier signals is performed with a stereo pilot signal and positive and negative pulse train signals produced by pulse detection of an FM signal.The multiplication signals are further added with each other to directly reproduce left and right stereophonic signals.

Abstract: An FM stereo demodulator having improved separation and distortion characteristics comprising a high-frequency pulse signal which is modulated by a sinusoidal subcarrier signal produced in accordance with a stereo pilot signal. The high-frequency pulse signal is multiplied with a composite signal at a multiplier so as to reproduce left and right signals without frequency components of noise. Constructed accordingly, the invention advantageously obviates the use of a low-pass filter which injects delay characteristics and reduces gain of the composite signal from an FM demodulator.

Abstract: A pulse position modulated (PPM) signal is derived from an input FM signal, and first and second switching signals are derived which are opposite in phase and correspond to alternating half cycles of the PPM signal. First and second opposite phase subcarrier signals are derived synchronized to the pilot signal in the input FM signal, and various combinations of the switching and subcarrier signals are multiplied together and the multiplication products combined to obtain left and right channel outputs.