摘要:
A use condition of gas equipment is monitored. An abnormality determination unit 26 determines whether or not a use flow volume obtained by detecting a flow velocity obtained by measuring a signal transfer time in a medium using a flow velocity detection unit 17 and converting the detected flow velocity into a flow volume using a flow volume calculation unit 25. When the shutoff unit 27 shuts off a fluid path 1 when it is determined that there is abnormality, a return signal is output from a return unit 28 to a shutoff unit 27 in order to use the gas again by opening the fluid path. Simultaneously, when a return time-counting unit 29 starts the time-counting operation, and then, a predetermined time period has been elapsed, the flow volume calculation unit 25 determines whether or not a predetermined flow volume of greater flows in order to identify whether or not all of the gas plugs of the gas equipment connected to the downstream of the gas shutoff apparatus 27 are closed. The leakage determination unit 30 determines that there is leakage when a predetermined flow volume or greater is detected, and a driving signal is output to the shutoff unit 27 to close the fluid path 1.
摘要:
In a pay broadcasting system, data of a broadcast program is scrambled with a scramble key updated in a short period. The scramble key is encrypted with a first key assigned to the subscriber terminal. The first key is encrypted with a first master key set in the subscriber terminal. The security of a broadcast program stored for subsequent use in the subscriber terminal is enhanced as follows. A central station generates a second key-encrypted scramble key by encrypting the scramble key with a second key different from the first key and changeable in an interval shorter than a update interval of the first key; generates an encrypted second key by encrypting the second key with a second master key which has been commonly issued to subscriber terminals of the system; and broadcast the second key-encrypted scramble key and the encrypted second key together with the scrambled data of the program, the first key-encrypted scramble key and the encrypted first key in a multiplexed manner. When a broadcast program is to be stored, the subscriber terminal stores the scrambled data of the broadcast program and the second key-encrypted scramble key; decrypt the encrypted second key with the second master key into the second key, which is added to a stored program second key list. If the stored program is to be executed, the second key-encrypted scramble key is decrypted with a corresponding one of the second keys in the stored program second key list into a decrypted scramble key; and the scrambled data of the broadcast program is unscrambled with the decrypted scramble key.
摘要:
In a video signal processing apparatus for correcting time axis errors using a memory, with replacement of a horizontal sync signal in a video signal read out from the memory by a reference horizontal sync signal, data appearing in a vertical flyback period is not lost. A vertical flyback period detecting circuit functioning as an inhibiting means detects the vertical flyback period and produces a detection signal. An AND gate gates the detection signal and a reference horizontal sync signal generated from a sync signal generating circuit, so that a replacement of the horizontal sync signal is inhibited during the vertical flyback period, and an address, a time code and an ID code which have been inserted during the vertical flyback period are not lost.
摘要:
The present invention relates to a two-cycle internal combustion gasoline engine cylinder. The two-cycle engine cylinder according to this invention is characterized in that a smooth hard chromium plated layer is formed on a combustion chamber top inner surface of the cylinder.
摘要:
A single mode laser glass fiber showing excellent laser oscillation characteristics even at a short fiber length can be efficiently obtained using a phosphate laser glass with excellent laser characteristics.
摘要:
An electronic appliance that may use a secondary battery or an AC adapter as an external power supply is disclosed. The electronic appliance may include a power supply terminal, a communication terminal, an authentication processing section, a voltage comparing section, and a power supply determining section.
摘要:
A method for manufacturing a cylinder having scavenging passages for a two-cycle internal combustion engine is disclosed which comprises the steps of forming bulged portions protruded radially outwardly in a portion of a cylindrical liner, and surrounding the liner by casting through a high pressure diecast method, thereby form a main part of the cylinder.
摘要:
Disclosed is a two-cycle internal combustion engine including a protruding edge portion formed in a section of a lower side surface of an intake port which is adjacent to a pre-compression chamber of a cylinder. This protruding edge portion serves to deflect air-fuel mixture introduced into the pre-compression chamber through the intake port so as to direct it to a bearing portion provided between a piston and a connecting rod. Further, a cut-in groove is formed in the protruding edge section and is adapted to allow any liquid remaining in the intake port to flow into the pre-comparison chamber.
摘要:
A glass composition for a photoetching mask is described, which comprises, all by mol, 55 to 70% SiO.sub.2, 7 to 11% Al.sub.2 O.sub.3, 7 to 20% CaO, 3 to 13% MgO, 3 to 13% ZnO, 0.5 to 3% K.sub.2 O or Na.sub.2 O, 0 to 11% PbO and 0 to 3% ZrO.sub.2. This glass is free from defects such as pinholes, has a relatively low coefficient of thermal expansion and contains no air bubbles, and a photoetching mask composed of the glass composition.
摘要翻译:描述了一种用于光刻掩模的玻璃组合物,其包括全部为55至70%的SiO 2,7至11%的Al 2 O 3,7至20%的CaO,3至13%的MgO,3至13%的ZnO,0.5至3 %K2O或Na2O,0〜11%PbO和0〜3%ZrO2。 该玻璃没有诸如针孔的缺陷,具有相对低的热膨胀系数并且不含气泡,以及由玻璃组合物构成的光刻掩模。
摘要:
The present system comprises (a) a character input unit for providing the coordinates of a plurality of points of an input character, (b) a pre-process unit for normalizing the size and the position of said input character, (c) three points approximate unit for providing three feature points for each stroke of the input character, (d) a reference pattern storage for providing the coordinates of the feature points for each stroke of the reference characters, (e) a stroke difference calculator for providing the sum p.sub.i of the length between the feature points of the k'th stroke of the input character and the feature points of the i'th stroke of the j'th reference character, (f) a storage for storing the stroke difference p.sub.i, (g) means for operating the members (e) and (f) repetitively for all the strokes of the j'th reference character, (h) means for detecting the minimum value p.sub.min among the stroke difference p.sub.i thus obtained, (i) means for operating the members (e), (f), (g) and (h) repetitively for all the strokes of the input character, and accumulating the value p.sub.min to provide the value d.theta. .sub.j, which is the pattern difference between the input character and the j'th reference character, (j) a storage for storing the value d.theta..sub.j , (k) means for operating the members (i), and (j) repetitively for all the reference characters to provide the set of d.theta..sub.j for the given input character, and (l) means for detecting the minimum value among the values d.theta..sub.j and determining the input character as the reference character which provides the minimum value of d.theta..sub.j.