摘要:
A control system is disclosed wherein the dialing of a specific number as the first digit is prevented. The system comprises a dial tone detector which detects a dial tone sent from a telephone exchange to a telephone set when a call is originated from the telephone set by off-hooking its handset, a dial pulse counter for sequentially counting the number of the dial pulses detected by the dial pulse detector, and circuitry responsive to signals from the dial tone detector and dial pulse counter for interrupting the loop if a number is dialed before reception of a dial tone. Additionally, when the output of the counter corresponds to the forbidden number, a talking or speech interruption control unit is operated to interrupt the talking or speech loop.
摘要:
A mounting structure for mounting accessories on a designed interior member in a vehicle compartment includes a plurality of mounting portions. Each of the mounting portions includes a non-contact type power sending terminal and a vehicle-side antenna. The mounting portion transmits power from the battery of the vehicle via the non-contact type power sending terminal, and further transmits a multiplex signal that includes all the control signals required for controlling a plurality of accessories via the vehicle-side antenna. A user can mount an accessory arbitrarily selected from the plurality of accessories on any of the mounting portions without newly installing the required wiring, and therefore readily replace the accessories mounted on the mounting portions.
摘要:
In a speed control system for vehicles, a speed difference calculation circuit calculates an absolute value of a time difference between a predetermined period of time corresponding with a desired speed and an instant period of time corresponding with the actual speed, an acceleration calculation circuit calculates an absolute value of a time difference between the respective instant periods of time, and a correction signal generator calculates a sum of the absolute values in consideration with the actual speed when each sign of the calculated time differences is positive or negative and calculates a difference between the absolute values in consideration with the actual speed when respective signs of the calculated time differences are opposite to each other. The signal generator selectively produces correction signals related to the calculated sum and the calculated difference. A distribution circuit produces a control signal in response to the respective correction signals, and an actuator controls the opening angle of the engine throttle in response to the control signal.
摘要:
An altitude difference measuring apparatus for measuring the difference between the altitudes at a first and second points on the basis of the barometric difference between the points, having an air pressure holding section with an electromagnetic valve for hermetrically containing an amount of air. At the first place an amount of the ambient air is held hermetrically in the air pressure holding section, and at the second place the barometric difference between the air pressure in the air pressure holding section and the ambient air pressure is converted into an electric signal, and in accordance with the electric signal the difference between the altitudes at the first and second points is indicated.
摘要:
A fuel consumption rate meter incorporating a fuel meter. The momentary amount of fuel consumed by a running vehicle is measured and the momentary fuel consumption rate is computed from the momentary amount of fuel consumed. The momentary amount of fuel consumed is integrated to give the total amount of the fuel consumed. The computed fuel consumption rate and the integrated fuel amount are indicated on the same panel.
摘要:
A steering angle indicating system for a vehicle includes a plurality of rotational angle sensors arranged within a steering wheel of the vehicle, each thereof producing an electric signal indicative of a turn angle of the steering wheel, an indicating unit responsive to the turn angle signals from the rotational angle sensors to compute the turn direction and the turn angle of the steering wheel and to indicate a result of the computation, and a power supply circuit supplied with electric power from a load side of a horn switch prearranged within the steering wheel. The system prevents the occurrence of a collision caused by careless starting of the vehicle by the driver.
摘要:
In a speed control system for automotive vehicles, a first time difference between values of a timing signal responsive to the actual speed of the vehicle and a command signal indicative of a desired speed is calculated to produce a first differential signal indicative of an absolute value of the first time difference, and a second time difference between respective values of the preceding and following timing signals is calculated to produce a second differential signal indicative of an absolute value of the second time difference and a sign signal indicative of one of positive and negative signs of the second time difference. The absolute value of the second differential signal is adjusted to a smaller value when the sign of the sign signal changes within a duration defined by the preceding and following timing signals, the absolute value of the first differential signal is adjusted in accordance with either one of the absolute and smaller adjusted values of the second differential signal in relation to the sign of the sign signal to produce a correction signal indicative of the adjusted value of the first differential signal, and a control signal is produced in response to the correction signal to control the fuel supply into the prime engine of the vehicle.
摘要:
A switch apparatus for use in a vehicle in which the DC signal path electrically connecting between the horn switch disposed on the steering wheel in the steering apparatus and the horn disposed on the vehicle body is utilized to transmit, for example, a constant-speed running control signal from a signal transmitting unit disposed in the steering apparatus to a signal receiving unit disposed in the vehicle body. The signal transmitting unit includes a plurality of switches provided for the purpose of constant-speed running control, and a signal frequency generated in response to manipulation of a selected one of these switches is superposed on the DC signal which is supplied by way of the DC signal path to energize the horn. The DC signal path is also utilized to supply required power to the signal transmitting unit in the steering apparatus.
摘要:
The key button telephone system comprises a key service unit and a plurality of key telephone units. The key service unit and each key telephone unit are interconnected by a pair of cables, one of which is used as a talking circuit and the other is used to transmit and receive information signals and operating power. The key service unit comprises a line circuit for supervising the state of a line, a station unit for supervising the line circuit, and for supplying to the key telephone unit an information signal representing the state of the line and the operating power, a switching network controlled by the control output from the station unit for connecting the key telephone unit to the line, and a common control circuit for controlling the line circuit and the station unit. Each key telephone unit comprises a telephone circuit connected to the switching network, a telephone control circuit for supervising the state of the key telephone unit connected to the station unit, and a DC converter for converting a DC voltage supplied from the station unit into a predetermined DC voltage.
摘要:
A vehicle information display system includes a head-up display for reflecting an image on a windshield of a vehicle and displaying the image so that a driver recognizes the image as a virtual image. Information is collected for being displayed by the head-up display. A circumstance of the vehicle, a circumstance of surrounding of the vehicle, or a circumstance of the driver is detected. The collected information is classified in accordance with a detection result. Then, display contents of the head-up display are controlled in accordance with a classification result.