Dieter A Susset

39978923, Dec 14, 1976

Feb 4, 1975

5/546867

Dieter A. Susset - San Mateo CA

TRW Inc. - Los Angeles CA

H03K 1302

340347DA

A digital to analog converter includes nonlinear and linear cascaded resistive voltage dividers the nonlinear divider having its resistors valued to approximate a desired transfer characteristic. The high order bits of the digital input code select a predetermined resistor of the nonlinear divider and place the voltage across such resistor across the linear resistive divider the lower order bits of the code thereafter selecting a point on the linear divider which provides an analog value equivalent to the digital input code.

39405630, Feb 24, 1976

Oct 23, 1974

5/517229

Dieter A. Susset - San Mateo CA

TRW Inc. - Los Angeles CA

H04J 306

179 15BS

A reframing method for a T1 carrier type pulse code modulation digital data system utilizes the combination of the terminal frame code and the signalling code wherein four consecutive framing bits provide a unique four bit code indicating any one frame of a 12 frame. The method includes the steps of searching for the terminal frame code, synchronizing the framing code generator with the unique 4 bit code, and thereafter checking the three subsequent frames to insure proper reframing.