Abstract: An audio processing apparatus includes: a transmission signal input/output unit that inputs or outputs a video signal, an audio signal, and a control signal; a reproduction processing unit that reproduces the audio signal inputted to the transmission signal input/output unit or an audio signal inputted to any other audio signal input unit; an output unit that outputs the audio signal, which is processed by the reproduction processing unit, through a loudspeaker; and a control unit that when detecting that a control signal signifying that a predetermined mode concerning the display image quality represented by the video signal should be designated is inputted to the transmission signal input/output unit, instructs the reproduction processing unit to perform predetermined sound-field processing or sound-quality processing during the reproduction.

Abstract: An audio processing apparatus includes: a transmission signal input/output unit that inputs or outputs a video signal, an audio signal, and a control signal; a reproduction processing unit that reproduces the audio signal inputted to the transmission signal input/output unit or an audio signal inputted to any other audio signal input unit; an output unit that outputs the audio signal, which is processed by the reproduction processing unit, through a loudspeaker; and a control unit that when detecting that a control signal signifying that a predetermined mode concerning the display image quality represented by the video signal should be designated is inputted to the transmission signal input/output unit, instructs the reproduction processing unit to perform predetermined sound-field processing or sound-quality processing during the reproduction.

Abstract: Disclosed is an image data transmission apparatus which includes an image reading unit for reading the original image, and a transmission apparatus main body. The main body includes a memory for storing the image data read by the image reading unit and transmits the content of the memory. The image reading unit is detachably mounted on the transmission apparatus main body. The transmission apparatus main body is further provided with a conveying device for conveying the original in a state in which the image reading unit is mounted on the transmission apparatus main body to thereby read the original. The image reading unit may also scan the original to read an original image, in a state in which the image reading unit is dismounted from the transmission apparatus main body. Further, a sheet element made of a material of a low coefficient of friction, as opposed to the original, may be disposed at a position corresponding to the mounted state of the image reading unit on the transmission apparatus main body.

Abstract: A head driving mechanism for driving a recording head for a recording apparatus, includes a cylindrical head slide shaft, a head carriage formed with a circular bore so as to be slidably and rotatably fitted, at the circular bore, around the head slide shaft. A prismatic cam shaft which is engageable with the head carriage is also provided for rotating the head carriage, and an elastic member and a solenoid are provided for urging the cam shaft in opposite directions. Upon energization of the solenoid, the cam shaft is rotated in a direction such that the recording head is selectively depressed against a platen by a driving force of the solenoid and upon de-energization of the solenoid the cam shaft is rotated by an urging force of the elastic member such that the recording head is disengaged from the platen.

Abstract: Disclosed is an image data transmission apparatus which includes an image reading unit for reading the original image, and a transmission apparatus main body. The main body includes a memory for storing the image data read by the image reading unit and transmits the content of the memory. The image reading unit is detachably mounted on the transmission apparatus main body. The transmission apparatus main body is further provided with a conveying device for conveying the original in a state in which the image reading unit is mounted on the transmission apparatus main body to thereby read the original. The image reading unit may also scan the original to read an original image, in a state in which the image reading unit is dismounted from the transmission apparatus main body. Further, a sheet element made of a material of a low coefficient of friction, as opposed to the original, may be disposed at a position corresponding to the mounted state of the image reading unit on the transmission apparataus main body.

Abstract: A printer system containing an elastic endless sheet member which extends between roller members in front of a print head. The roller members are disposed so as to form a flat surface of the elastic endless sheet member in front of the print head in order to ensure clean printing. One of the roller members is connected to a paper feed motor so that a paper sheet is fed in front of the print head in the vertical direction in unison with the rotation of the elastic endless sheet member around the roller members.

Abstract: Disclosed is a heat-transfer type thermal recording device capable of recording/printing color pictures by heating an ink tape using a thermal line head and transferring ink from the ink film tape to a continuous sheet of recording paper where the ink film tape and recording paper are conveyed simultaneously, consisting of a vertical cassette unit with an ink-tape supply reel and a take-up reel which allows both to freely rotate by suspending them between two side panels of the cassette unit, with such a configuration in which the ink tape from the supply reel is continuously retrieved by the take-up reel through an inferior aperture in the cassette unit after the ink tape is drawn through a superior aperture in the cassette unit. The cassette unit is installed in a designated position inside the thermal recording device to enable easy loading and unloading and to simplify positioning of the ink film tape between the thermal line head of the recording device and the recording paper platen reel.

Abstract: Polyethers of the formula: ##STR1## wherein: R is the residue of a starting active hydrogen compound with removal of the active hydrogen atom, R.sub.1 is a C.sub.1 -C.sub.10 alkyl or aryl, R.sub.2 is a C.sub.1 -C.sub.10 alkyl, R.sub.3 is H, CH.sub.3, C.sub.2 H.sub.5 or phenyl, x is 5-100, y is 1-5, and z is 2-8 are less active than those having primary or secondary alcoholic function at terminals.

Abstract: An electronic controlled fuel injection system is disclosed for use in an internal combustion engine including a plurality of cylinders each fitted with a fuel injection valve. The system comprises a fuel injection control circuit timed to engine rotation for providing a drive pulse signal to the fuel injection valves. A deceleration detecting circuit detects deceleration of the engine in accordance with the positions of the associated throttle valve and foot brake. A coupling circuit is responsive to engine rotational speed for allowing or impeding the passage of the drive pulse signal to the fuel injection valves during deceleration.

Abstract: Apparatus for controlling the number of enabled cylinders of an internal combustion engine during deceleration comprises a plurality of comparators responsive to a signal indicative of the engine rotational speed upon deceleration of the engine. The threshold voltages of the comparators are arranged stepwise so that each comparator produces an output signal when the engine speed falls below each threshold voltage. The output signals of the comparators are supplied to logic circuits to control a plurality of switches via which the fuel injection control pulse signal is respectively applied to fuel injection valves to increase in a stepwise fashion the number of enabled cylinders from the fuel cut-off state thereby preventing occurrence of impacts or shocks in the transition period of reactivation of the cylinders upon deceleration.

Abstract: The engine crankshaft rotational speed is detected to be compared with stepwise arranged threshold speeds so as to stepwise enable fuel injection valves of respective cylinders during deceleration of the engine. Accordingly, the number of enabled cylinders is increased in a stepwise manner from a fuel cut-off state as the engine rotational speed decreases to prevent engine stall, while occurrence of shocks upon reactivation of cylinders is avoided. The threshold speeds are controlled in accordance with the variation of engine load which may be increased upon operation of auxiliary power consuming units, such as an air conditioner the compressor of which is driven by the engine, for preventing undesirable vibrations of the engine during the stepwise reactivation of the cylinders.

Abstract: A control system for a multi-cylinder internal combustion engine comprises a split engine control unit for operating the engine on partial cylinders when reduced engine power can adequately operate the vehicle, and first and second upstream exhaust conduits for directing exhaust gases from first and second group cylinders respectively to a common junction to which a downstream exhaust conduit is connected for emitting the gases to the atmosphere. A first set of an exhaust gas sensor and catalytic converter is disposed in the first conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second set of an exhaust gas sensor and catalytic converter is disposed in the common downstream conduit to be exposed to the stream of gases exhausted from the first group cylinders directed through the first conduit and to the gases passed through the upstream catalytic converter in the second conduit.

Abstract: A control system for a multi-cylinder internal combustion engine comprises a split engine control unit for operating the engine on partial cylinders when reduced engine power can adequately operate the vehicle, and first and second exhaust conduits for directing exhaust gases from first and second group cylinders respectively to a common junction to which a common exhaust conduit is connected for directing the gases to the atmosphere. A first set of an exhaust gas sensor and catalytic converter is disposed in the second conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second set of an exhaust gas sensor and catalytic converter is disposed in the common conduit to be exposed to the stream of gases exhausted from the first group cylinders directed through the first conduit and to the gases passed through the upstream side catalytic converter in the second conduit.

Abstract: Disclosed is a split engine control system wherein the intake manifold is segmented by a shut-off valve into a first chamber portion leading to a first group of cylinders and a second chamber portion leading to a second group of cylinders. During periods of relatively low load, the cylinders of the second group are deactivated and the shut-off valve is closed to isolate the second chamber from the first chamber to cut off air supply to the deactivated cylinders. Exhaust gases are recirculated through the deactivated cylinders so that their pumping loss is minimized. A pressure detector is provided to detect a pressure difference which might develop between the first and second chambers during the partial cylinder operation to control the flow rate of the recirculated gases until the pressure difference reduces substantially to zero.

Abstract: A control system for a multi-cylinder internal combustion engine comprises a split engine control unit for operating the engine on partial cylinders when reduced engine power can adequately operate the vehicle, and first and second upstream exhaust conduits for directing exhaust gases from first and second group cylinders respectively to a common junction to which a common downstream exhaust conduit is connected for emitting the gases to the atmosphere. A first catalytic converter is disposed in the second exhaust conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second catalytic converter is disposed in the common downstream conduit to be exposed to the stream of gases exhausted from the first group cylinders directed through the first conduit and to the gases passed through the first catalytic converter. An exhaust gas sensor is provided in the common exhaust conduit upstream of the downstream converter.

Abstract: A split engine control system includes a load level detector for generating a first signal in response to a relatively high engine load and a second signal in response to a relatively low engine load. A certain of the cylinders of an internal combustion engine is deactivated in response to the second signal to operate the engine on partial cylinders and activated in response to the first signal to permit the engine to operate on full cylinders. A discriminating circuit is connected to the load level detector to disable the second signal when the duration of the latter is smaller than a preset time interval which corresponds to the duration of a false indication of engine load reduction which might occur in response to gear changes during full cylinder operation.

Abstract: In an automatic power transmission system for a multicylinder internal combustion engine wherein the intake vacuum is not available as a true indication of engine load, a detection system for detecting the level of engine load includes an electrical actuator responsive to a signal which faithfully represents the engine load to vary the pressure of fluid in the automatic power transmission system. One embodiment of the invention includes an intake air sensor, an engine speed sensor and a division circuit responsive to the outputs from both sensors to generate a signal representing the quantity of air inducted per unit time to represent the true indication of the engine load free from the effect of exhaust gas recirculation or other factors influencing the intake vacuum.

Abstract: Fuel economy of a multi-cylinder internal combustion engine has been improved by allowing, when a vehicle is at a standstill, the engine to run on selected cylinders of all. The idling operation of the engine on the selected cylinders has been made smooth by the provision of a switch valve in a control circuit of the transmission. With the switch valve, as soon as an accelerator pedal is released when the vehicle is at a standstill, hydraulic fluid will be drained from the control circuit to render a gearing of the transmission in a neutral condition even if a manually selector valve in the control circuit is held in a drive range position. This prevents transmission of load to the engine through the hydrokinetic unit which otherwise would occur when the manually selector valve is in the drive range position.

Abstract: An internal combustion engine of the type wherein a particular group of engine cylinders are not supplied with air-fuel mixture during light load engine operation, comprises a gas supply device for supplying exhaust gas or fresh air into the particular group of cylinders when not supplied with air-fuel mixture, and a control device for stopping the supply of the exhaust gas or fresh air when a brake pedal is depressed to slow down the speed of a motor vehicle, so that engine brake becomes effective or is improved during light load engine operation.

Abstract: In an internal combustion engine, the magnitude of the engine load is compared with a reference level which is variable as a function of engine speed to detect when the engine load under low speed operation is small in proportion to the engine speed. Under these circumstances, fuel supply to a portion of the cylinders is blocked to allow the engine to run on a lesser number of cylinders so that fuel economy is achieved.