Interface for simulating a telephone line connection between two

Details Interface for simulating a telephone line connection between two Interface for simulating a telephone line connection between two

1993-02-02

1996-12-24

Chan, Jason

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

379 93, H04M 1100

Patent

active

055880479

ABSTRACT:
A device for simulating a telephone line connection between a sending unit and a receiving unit, each said unit two devices, each device having a telephone line connector. The inventive device generates a tone signal corresponding to a telephone calling tone when the sending unit outputs a signal indicating a desire to transmit data. The tone signal lasts for a predetermined amount of time sufficient to inform the sending unit that it may begin transmission of the data. A direct communication path is automatically established between the sending and receiving units connected to the device. The sending and receiving units are continuously provided with a line voltage simulating a conventional telephone line voltage, thus maintaining the communication path in an active state during the transmission.

REFERENCES:
patent: 4652933 (1987-03-01), Koshiishi
patent: 4964154 (1990-10-01), Shimotono
patent: 4991200 (1991-02-01), Lin
patent: 5224155 (1993-06-01), Satomi et al.
patent: 5233642 (1993-08-01), Renton

Affiliated with

Also associated with

Rating

Interface for simulating a telephone line connection between two does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interface for simulating a telephone line connection between two, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interface for simulating a telephone line connection between two will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1184207