公开(公告)号：US3955174A

公开(公告)日：1976-05-04

申请号：US458981

申请日：1974-04-08

Applicant: Andrew Peter Ives ,  Duncan Barry Hodgson ,  Allan Stanley Buckle ,  Raymond Paul Halmshaw

Inventor： Andrew Peter Ives ,  Duncan Barry Hodgson ,  Allan Stanley Buckle ,  Raymond Paul Halmshaw

IPC: B60Q11/00 ,  B60Q1/34

CPC classification number: B60Q11/007

Abstract: A direction indicator system for road vehicles, comprises an electrical circuit which is in the form of a single integrated circuit and which includes circuitry means externally connectible in at least two alternative ways to enable the indicator system to operate in any one of at least two different modes.

Abstract translation: 用于道路车辆的方向指示器系统包括电路，其为单个集成电路的形式，并且包括可以至少两种替代方式从外部连接的电路装置，以使指示器系统能够以至少两种不同的方式 模式。

公开(公告)号：US3947811A

公开(公告)日：1976-03-30

申请号：US509552

申请日：1974-09-26

Applicant: Duncan Barry Hodgson

Inventor： Duncan Barry Hodgson

IPC: G07C5/08 ,  G08B19/00

CPC classification number: G07C5/0816

Abstract: A fault indicating system in a vehicle includes a d.c. source, a plurality of electrically operated devices operated by the d.c. source and a plurality of fault indicating units, one for each device. Each fault indicating unit is operable by a predetermined address signal, and on being operated produces after a delay an output representative of the operation condition of its device, each fault indicating unit having a different delay. A monitoring unit produces the predetermined address signal and receives the output signals from the fault indicating units. The monitoring unit operates in cycles, in each of which it has a transmission period in which it feeds the address signal to all the fault indicating units, and a plurality of receiving periods during which it receives the output signals from the fault indicating units in turn, warning means being operable by the monitoring unit to indicate a fault in any of the devices.

Abstract translation: 车辆中的故障指示系统包括直流 源，由d.c.操作的多个电动装置。 源和多个故障指示单元，每个设备一个。 每个故障指示单元可由预定的地址信号操作，并且在被操作时，延迟后产生表示其设备的操作状态的输出，每个故障指示单元具有不同的延迟。 监视单元产生预定的地址信号并从故障指示单元接收输出信号。 监视单元以周期运行，每个周期中，它具有将地址信号馈送到所有故障指示单元的传输周期，以及多个接收周期，在该接收周期期间，它接收来自故障指示单元的输出信号 警报装置由监视单元操作以指示任何装置中的故障。

公开(公告)号：US4117453A

公开(公告)日：1978-09-26

申请号：US765864

申请日：1977-02-04

Applicant: Duncan Barry Hodgson ,  John Robert Thornton ,  Jonathan Rose

Inventor： Duncan Barry Hodgson ,  John Robert Thornton ,  Jonathan Rose

IPC: B60Q1/04 ,  B60Q1/02 ,  B60Q1/14 ,  H05B39/02

CPC classification number: B60Q1/1423 ,  B60Q2300/052 ,  B60Q2300/3321

Abstract: An automatic vehicle headlamp intensity adjustement circuit includes a high sensor. A tuned rectifier circuit for producing a d.c. signal of magnitude dependent on the amplitude of the 50Hz (or other local supply frequency) component of the signal picked up by the sensor. A lamp current modulating circuit is controlled by this d.c. signal through the intermediary of an averaging circuit. The averaging circuit has a relatively long time constant and a timer is connected to reduce this time constant if the d.c. signal continues to fall for more than a predetermined period of time.

公开(公告)号：US3996554A

公开(公告)日：1976-12-07

申请号：US452653

申请日：1974-03-19

Applicant: Andrew Peter Ives ,  Duncan Barry Hodgson

Inventor： Andrew Peter Ives ,  Duncan Barry Hodgson

IPC: G08G1/09 ,  G10L11/00 ,  G10L13/00 ,  H04B1/06 ,  H04B1/16 ,  H04B1/66 ,  H04B5/00 ,  H04Q7/14 ,  H04Q7/38 ,  G06G1/00

CPC classification number: H04B5/0031 ,  G08G1/094 ,  G10L25/00 ,  H04B1/66

Abstract: A data transmission system for a road vehicle has an aerial on the road vehicle for picking up signals from an external transmitter. This aerial passes a signal to a receiver on the vehicle which in turn passes the information to a memory unit which stores the information at a fast rate and then supplies the information at a slow rate to an electrical voice synthesizer.

Abstract translation: 用于道路车辆的数据传输系统在道路车辆上具有用于从外部发射器拾取信号的天线。 该天线将信号传递到车辆上的接收机，该接收机又将信息传递到以快速速率存储信息的存储器单元，然后以慢速率将信息提供给电气语音合成器。

公开(公告)号：US4109174A

公开(公告)日：1978-08-22

申请号：US765645

申请日：1977-02-04

Applicant: Duncan Barry Hodgson

Inventor： Duncan Barry Hodgson

IPC: F02D41/20 ,  B06B1/02 ,  B06B1/06 ,  F02C9/00 ,  H01L41/04 ,  H02N2/06 ,  H01L41/10

CPC classification number: H01L41/042 ,  B06B1/0246 ,  B06B2201/55

Abstract: A drive circuit for a piezo-electric crystal stack comprises an inductor, a first circuit including a diode and a transistor through which the inductor can be connected to a pair of d.c. supply terminals, the first circuit including a switch operable to reduce the current flow through the inductor, a second curcuit including a diode through which energy from the inductor is transferred to the stack of crystals when the current flow through the inductor is reduced. The drive circuit also includes means for transferring energy from the stack of crystals to the inductor when it is required to increase current flow in the inductor.

公开(公告)号：US3998193A

公开(公告)日：1976-12-21

申请号：US660364

申请日：1976-02-23

Applicant: Andrew Peter Ives ,  Duncan Barry Hodgson ,  Michael Herbert Cops

Inventor： Andrew Peter Ives ,  Duncan Barry Hodgson ,  Michael Herbert Cops

IPC: F02P5/15 ,  F02P5/04

CPC classification number: F02P5/15 ,  Y02T10/46

Abstract: A spark ignition system for a vehicle produces pulses representing the engine crankshaft angle. These pulses are counted, and compared with a datum signal which varies in accordance with engine conditions. When the two signals compared are equalled, then a spark is produced.

Abstract translation: 用于车辆的火花点火系统产生表示发动机曲轴角度的脉冲。 对这些脉冲进行计数，并与根据发动机条件变化的基准信号进行比较。 当比较两个信号相等时，产生火花。

公开(公告)号：US3958170A

公开(公告)日：1976-05-18

申请号：US571413

申请日：1975-04-24

Applicant: Duncan Barry Hodgson

Inventor： Duncan Barry Hodgson

IPC: G01R19/22 ,  H02M7/00

CPC classification number: G01R19/22

Abstract: A full wave rectifier comprises positive and negative supply lines, and a differential input amplifier which is powered by the positive and negative supply lines and which has its inverting input terminal connected through an impedance to an input terminal to which the a.c. signal to be rectified is fed. The non-inverting input terminal of the differential input amplifier is connected to a terminal at a potential intermediate the positive and negative supply lines, and a transistor has its base connected to the output terminal of the differential input amplifier. The emitter and collector of the transistor are connected through resistors to the supply lines, while the emitter of the transistor is also connected through an impedance to the inverting input terminal of the differential input amplifier, the output of the full wave rectifier being taken from the collector of the transistor.