Situational feature suppression system

Details Situational feature suppression system Situational feature suppression system

1999-05-04

2001-02-13

Wu, Daniel J. (Department: 2736)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S461000, C340S995190, C701S001000

Reexamination Certificate

active

06188315

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a system for suppressing features or functions of in-vehicle accessories when certain environmental factors are present. The invention is applicable with particular advantage to enhancing operation of an in-car telephone during predetermined driving conditions.
When properly used, in-car communications equipment such as mobile phones provide very desirable user capabilities and achieve safety benefits, e.g. summoning help in an emergency. However, the possibility exists that a careless user may operate such equipment in an improper manner. Thus, it is desirable to enhance the ability to operate the equipment with increased safety.
There are many different types of units available and fitted as standard in some vehicles which can provide information about environmental driving conditions, such as navigation systems, adaptive cruise control systems, and rain sensors. The term ‘driving condition measuring unit’ will be used to encompass all such systems as well as any unit capable of measuring the operation of the vehicle such as a speedometer, a braking detector, a unit for detecting the angle of turn of the vehicle, or especially any other device which can provide a signal which can indicate the presence of conditions related to the level of immediate driving tasks being handled by a driver.
The term ‘relevant condition’ is used herein to cover any driving condition where the task level of a driver may lead to careless use of an in-vehicle function or feature, for example when driving at high speeds, in bad weather, in heavy traffic, when negotiating a sharp bend or when in a complex road layout requiring concentration.
Mobile telephone operation is not the only non-driving function or feature subject to possible careless use. Many vehicles are fitted with sophisticated in-car entertainment systems. As these become more sophisticated offering more adjustments to the driver, some drivers may fail to utilize sufficient care while operating the entertainment system. Moreover, other features and accessories are being developed to allow the driver to work on the move, for example, in-vehicle computers allowing access to the Internet, faxes, and e-mail. The term ‘incidental features’ encompasses all such systems.
SUMMARY OF THE INVENTION
According to the invention there is provided a situational feature suppression system for a vehicle including at least one incidental feature means, the suppression system comprising at least one driving condition measuring unit coupled to a control unit for receiving signals from the driving condition measuring unit and interpreting the signals to assess whether a relevant condition exists. The control unit is coupled to the incidental feature means. The system operates such that on identification of a relevant condition, the control unit operates to suppress the incidental feature means.
Typically, the incidental feature means comprises an in-car telephone. However, the incidental feature means may comprise any system requiring real-time responses from the driver or significant concentration on adjusting controls or inputs such as a standard in-car entertainment system, including a radio, tape player and/or a compact disc player. Preferably, however, the incidental feature means comprises the telephone and the in-car entertainment system so that both systems are suppressed in relevant conditions.
In some known systems, the in-car telephone system is coupled to the in-car entertainment (ICE) center such that its audio is routed through the ICE center. In such systems, the phone system may provide an output control signal to the ICE center when a phone call is made so that there is a ‘mute’ effect of the audio signal from the radio/cassette to allow phone conversation to take place, thus giving priority to the telephone over the ICE system. It is preferred that the ‘mute’ signal is also provided to the control unit to indicate that the telephone is in use. In such a system, the control unit only operates the suppression if the telephone is in use.
Preferably, the driving condition measuring unit comprises an on-board navigation system which allows the position of the vehicle to be determined with a high degree of accuracy. Typically, such a system includes a GPS system operating via global positioning satellites.
Preferably, the control unit receives information from a plurality of driving condition measuring units, one of which is a navigation system. Other possible driving condition measuring units include a telematic radio receiver for receiving information from a remote source relating to traffic and road conditions, and speed and braking sensors.
The control unit is programmed to assess the driving conditions from the signals from the measuring units to identify a relevant condition. For example, a highway ramp, roundabout, or complex road junction could be identified by a navigation system. Heavy traffic in a particular area could be identified by the navigation computer pinpointing the location of the vehicle and remote telematics identifying a traffic problem in a particular area. Sensors and/or vehicle-to-vehicle communications systems monitoring vehicles near the subject vehicle can also identify heavy traffic conditions. Bad weather can be identified by the use of a rain sensor, or alternatively by relying on remote identification of weather conditions in particular areas, such information being relayed to the vehicle. High speeds can be identified by the vehicles own in-car computer. Also telematic traffic information can identify locally enforced restriction of car phone use, etc.
The control unit may suppress the incidental feature means in a number of ways. For an in-car entertainment center, the volume can be turned down or off. Preferably, however, the control unit operates to switch off the incidental feature means only until the relevant condition ends and then switches it back on again when the relevant condition no longer exists.
In the case outlined where the incidental feature means comprises a telephone routed through the ICE center, preferably the ‘mute’ signal is passed to the control unit so that the control unit ‘knows’ whether the telephone is in use. In this case, the suppression system only operates when the telephone is in operation.
Preferably, the unit is arranged to have at least one recorded message in its memory. The suppression triggers the playing of the message to inform the driver that the incidental feature means is being switched off during the relevant condition. The advantage of this over purely switching off is that the driver will immediately know that the phone is off and not worry if there has been any other line interruption, but also will permit him to concentrate on the relevant condition.
Preferably, the message will also inform the remote caller that the call is being interrupted and that the call is on temporary hold. Preferably, the control unit operates to restore the call from hold or to redial the number of a lost call when the relevant condition no longer exists.
The system may be a stand-alone system which can be installed in a vehicle as an aftermarket addition, requiring connection of the control unit to a number of existing systems in the vehicle, or alternatively may form part of the vehicles on-board computer.


REFERENCES:
patent: 4812843 (1989-03-01), Champion, III et al.
patent: 5504482 (1996-04-01), Schreder
patent: 5631638 (1997-05-01), Kaspar et al.
patent: 5719771 (1998-02-01), Buck et al.
patent: 5764139 (1998-06-01), Nojima et al.
patent: 5794164 (1998-08-01), Beckert et al.
patent: 5821880 (1998-10-01), Morimoto et al.
patent: 5949345 (1999-09-01), Beckert et al.
patent: 42 39 271 (1993-10-01), None
patent: 41 26 435 (1995-09-01), None
patent: 44 10 532 (1995-09-01), None
patent: 0 545 497 (1993-06-01), None
patent: 10 090390 (1998-04-01), None
Patent Abstracts of Japan (vol. 1998, No. 09, Jul. 31, 1998).

Affiliated with

Also associated with

Rating

Situational feature suppression system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Situational feature suppression system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Situational feature suppression system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2607755