Horology: time measuring systems or devices – Combined with disparate device
Reexamination Certificate
1999-10-28
2001-05-08
Miska, Vit (Department: 2859)
Horology: time measuring systems or devices
Combined with disparate device
C368S046000, C368S047000, C368S051000, C368S055000, C368S185000, C368S187000, C348S554000, C348S706000
Reexamination Certificate
active
06229763
ABSTRACT:
CLAIM OF PRIORITY
This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. §119 arising from an application for a Device and Method For Setting Time of Apparatus Which Receives Signals From Analog and Digital Channels earlier filed in the Korean Industrial Property Office on Oct. 28, 1998 and there duly assigned Serial No. 45342/1998.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a technique for setting time in an image processing apparatus in which signals from analog and digital channels are processed, and more particularly, to a device and method for setting time of an apparatus which receives signals from analog and digital channels, in which the current time on reception of a signal from an analog channel is automatically set according to current time information from a digital channel.
2. Description of the Related Art
In earlier image processing apparatus which receives and processes signals from an analog or digital channel, current time information contained in the signal from the digital channel is used to set the current time on the reception of the signal from the digital channel. However, when a signal from the analog channel is received, the current time must be manually set by a user, so that the user is inconvenienced by having to set the time, and the accuracy in setting the time is lowered. U.S. Pat. No. 5,583,833 for a Method and Apparatus for Setting a Clock in a Computer System to Capps et al discloses a digital processor used for setting a real-time clock in a computer system. I have not seen a technique for setting a clock upon reception of an analog signal on an analog channel.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a technique for setting the current time on reception of a signal from an analog channel according to current time information of a signal from a digital channel.
It is also an object to provide a technique for setting the time of a clock of an image processing apparatus upon receipt of an analog signal along an analog channel by setting the clock using an arbitrary digital channel and then outputting the signal of the original analog channel.
According to an aspect of the present invention, there is provided a device for setting times of an image processing apparatus which receives signals from analog and digital channels, the device comprising: a channel decision unit for determining whether an input signal is from the analog or digital channel; a time information receiving unit for receiving current time information from the signal of the digital channel; and a controller for receiving the output from the channel decision unit, setting the current time based on the current time information from the time information receiving unit if the input signal is determined to be a signal from the digital channel, and applying a control signal to the channel selection unit if the input signal is determined to be a signal from the analog channel, to select an arbitrary digital channel and set the current time based on the current time information of the digital channel signal, and then reapplying a control signal to the channel selection unit to output a signal from the original analog channel.
According to another aspect of the present invention, there is provided method for setting times in an image processing apparatus which receives signals from analog and digital channels, the method comprising the steps of: (a) determining whether an input signal is from the analog or digital channel; (b) if the input signal is determined to be a signal from the digital channel, setting the current time based on current time information from the signal of the digital channel; and (c) if the input signal is determined to be a signal from the analog channel, setting the current time based on the current time information from an arbitrary digital channel.
In the step (c) of setting the current time on reception of a signal from the analog channel according to the current time information from a digital channel, if the input signal is determined to be a signal from the analog channel in the step (a), an arbitrary digital channel is selected to obtain the current time information from the signal of the digital channel, and then the current time is set based on the obtained current time information obtained and the original analog channel is reselected.
REFERENCES:
patent: 4187518 (1980-02-01), Martin et al.
patent: 4910721 (1990-03-01), Hayakawa et al.
patent: 5329500 (1994-07-01), Baik et al.
patent: 5334975 (1994-08-01), Wachob et al.
patent: 5583833 (1996-12-01), Capps et al.
patent: 5621458 (1997-04-01), Mann et al.
patent: 5926228 (1999-07-01), Jeon et al.
patent: 5991240 (1999-11-01), Van Ryzin
patent: 6169580 (2001-01-01), Shin et al.
Bushnell , Esq. Robert E.
Goodwin Jeanne-Marguerite
Miska Vit
Samsung Electronics Co,. Ltd.
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