| US 7,526,264 B2 | ||
| NxM crosspoint switch with band translation | ||
| Keith Bargroff, San Diego, Calif. (US); Bert Fransis, San Diego, Calif. (US); Keith Rampmeier, San Diego, Calif. (US); Raducu Lazarescu, San Diego, Calif. (US); Kostas Papathanasiou, Houston, Tex. (US); Esa Tarvainen, San Diego, Calif. (US); Tony Mellissonos, Carlsbad, Calif. (US); and Donghai Wang, San Diego, Calif. (US) | ||
| Assigned to RF Magic, Inc., San Diego, Calif. (US) | ||
| Filed on Sep. 30, 2006, as Appl. No. 11/537,628. | ||
| Application 11/537628 is a continuation of application No. 10/734604, filed on Dec. 11, 2003, abandoned. | ||
| Claims priority of provisional application 60/433066, filed on Dec. 11, 2002. | ||
| Claims priority of provisional application 60/433061, filed on Dec. 11, 2002. | ||
| Claims priority of provisional application 60/433067, filed on Dec. 11, 2002. | ||
| Claims priority of provisional application 60/433063, filed on Dec. 11, 2002. | ||
| Prior Publication US 2007/0087712 A1, Apr. 19, 2007 | ||
| Int. Cl. H04B 1/06 (2006.01) | ||
| U.S. Cl. 455—140 [455/3.02] | 11 Claims |
| 1. An N-input by M-output crosspoint switch with frequency translation integrated circuit for use in distributing signals
supplied from N input sources coupled to the N-input by M-output crosspoint switch, the integrated circuit comprising:
an N-input by M-output crosspoint switch configured to route a signal supplied to any one of the N inputs to any one or more
of the M outputs, the N-input by M-output crosspoint switch comprising N groups of M switches, each group of M switches having
one switch input and M switch outputs, each of the N switch inputs configured to couple to a separate one of the N signal
sources, wherein each of the N switch inputs has a high input impedance relative to the output impedance of the input source
supplying said signal thereto; and
a plurality of M frequency translation devices, each M frequency translation device coupled to one of the M switch outputs,
wherein (i) each of the frequency translation devices has a high input impedance relative to the output impedance of each
of the N input sources, wherein each switch in the N groups of M switches comprises a voltage mode switch, and wherein the
voltage mode switch is operable to present the high input impedance of one or more of the M frequency translation devices
to one or more of the N switch inputs , or (ii) each switch in the N groups of M switches comprises a current mode switch
having a high input impedance relative to the output impedance of each of the N input sources.
|