John C Regan

42662923, May 5, 1981

Nov 20, 1978

5/950844

John F. Regan - Lombard IL
Satyan G. Pitroda - Villa Park IL
Byung C. Min - Belmont CA

Wescom Switching, Inc. - Oak Brook IL

H04J 314

370 13

An apparatus and method for testing for faults in an analog-to-digital (A/D) section and a digital-to-analog (D/A) section of a code converter in a digital time division, multiplex telecommunications system are disclosed. The A/D section is tested by connecting a digital test pattern via the switching network to the D/A section and monitoring for faults by comparing the resulting output to a reference value. The A/D section is tested by interconnecting the A/D section to be tested between a first previously tested D/A section and a second previously tested D/A section and then connecting the digital test pattern to the first D/A section while monitoring the output of the second D/A section for faults.

39992349, Dec 28, 1976

May 27, 1975

5/581140

John J. Regan - Elmwood Park IL

A61G 0702
A47C 2722

5351

A bed for supporting a user's body in a level condition thereon to minimize bodily irritations includes a base with a mattress cover over a plurality of movable body support elements carried by the base. The body support elements are vertically disposed and movably received in a pair of vertically spaced and horizontally disposed planar sheets which are carried by the base. Means resiliently mounting each body support element resists the depression of the elements and the elements which are beneath the heaviest parts of a user's body provide a greater support than the other elements.

41408829, Feb 20, 1979

Sep 12, 1977

5/832663

John F. Regan - Lombard IL
Robert F. Wojcinski - Westmond IL
Richard S. Surma - Lombard IL
Ronald C. Fischer - Hanover Park IL

Wescom Switching, Inc. - Downers Grove IL

H04M 100
H04M 302

179 84L

A telephone system usable for example in hotels or the like and in which each of a plurality of telephone sets is equipped with a special status indicator or signal light as well as the usual bell, the system being characterized in that the indicator is automatically excited without ringing the bell by voltages applied from the ring generator whose output signal is connected across the tip and ring leads of a telephone line when the latter is placed in a special status (message waiting) by a status signal in the control unit. The ring generator is constructed to produce special status indicator excitation voltages during the "bell silent" intervals of its output signal, and the indicator is periodically actuated by connecting that output signal across the tip and ring leads of telephone sets, which are in the special status, during at least a portion of such intervals.

41610458, Jul 17, 1979

Dec 19, 1977

5/861961

John J. Regan - Elmwood Park IL

A47C 2300
A47C 2700

5464

A mattress of improved support having planar top and bottom surfaces is provided with at least two sets of transversely extending ribs. The ribs, which may be continuous or discontinuous, are less compressible than the material of the mattress and are spaced apart longitudinally from each other within each set. The sets are spaced apart longitudinally to correspond in position to the shoulder area and buttocks area of the user to provide maximum support for body areas of greater weight, and hold the body generally straight. Another embodiment of the invention employs relatively small support plates uniformly distributed between the layers of a multi-layer mattress to provide uniform support over the entire area of the mattress.

44398190, Mar 27, 1984

Aug 9, 1982

6/406139

John F. Regan - Lombard IL

Rockwell International - Downers Grove IL

H02P 1316

363 17

A switching regulator with controlled simulated load has a control which connects and disconnects the simulated load to the output of the regulator. The control is responsive to an error signal of a first comparator. A second comparator receives the output of said first comparator and produces a control signal for the simulated load when the regulator output reaches a predetermined level.

40539571, Oct 18, 1977

Jun 1, 1976

5/691464

John J. Regan - Elmwood Park IL

A47C 2300

5355

A multi-layered mattress for straightening a reclining body including a lower layer which has a support engaging bottom surface and a generally planar top surface. An upper layer which has a bottom surface engaging the top surface of the lower layer and a top, body supporting surface. The resiliency of the material in the upper layer is greater than that of the lower layer. First and second ribs of less resiliency than the upper layer extend transversely across and upwardly from the upper surface of the lower layer into complementary recesses in the bottom surface of the upper layer. The first and second ribs are positioned to support the shoulders and the buttocks of one lying on the mattress.

40643778, Dec 20, 1977

Mar 11, 1976

5/665813

John F. Regan - Lombard IL

Wescom Switching, Inc. - Oakbrook IL

H04B 158

179170NC

An electronic hybrid for coupling signals between two wire and four wire transmission circuits, and capable of meeting the operating requirements of practical telephone systems. The hybrid includes a pair of terminating impedances serially connected between the two wire port and the circuitry driving that port, the impedances being precisely matched and coupled to a. c. ground, thereby providing a hybrid with excellent longitudinal balance. Amplifiers driving the two wire port through the terminating impedance may be biased to couple a d. c. potential to the two wire line whereby the terminating impedances serve as battery feed resistors. Reverse signal recovery is provided by an amplifier differentially connected to the two wire port, achieving excellent longitudinal rejection and further allowing the amplifier to serve a supervisory function. Two of such hybrids, connected back to back, with amplification interposed therebetween, form an improved transformerless repeater. In this embodiment, the amplifier may be constructed to be of variable gain, with the gain automatically adjusted as a function of sensed loop current, whereby the repeater may be installed without manually adjusting the amplification to suit the loop length.

43885004, Jun 14, 1983

Feb 27, 1981

6/239061

John F. Regan - Lombard IL

Wescom, Inc. - Downers Grove IL

H04B 158

179170NC

An improved electronic hybrid for coupling signals between two wire and four wire transmission circuits. The hybrid includes a pair of amplifiers associated with a pair of terminating impedances which are serially connected between the amplifier outputs and the two wire port. The amplifiers driving the two wire port through the terminating impedances are biased to couple a dc potential to the two wire line whereby the terminating impedances serve as battery feed resistors. Each amplifier-impedance arrangement includes a feedback circuit connected from the junction between the impedance and the two wire port and an input of the amplifier for providing positive feedback for the amplifier so that the output impedance of the hybrid is maintained at a desired level using battery feed resistors of smaller value than heretofore required. The result is the ability to drive longer loops through the smaller series impedances while at the same time exhibiting the desired terminating impedance.