Resumes
Resumes
Dieter Siegmund Phones & Addresses
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223 Fridley Dr, Santa Cruz, CA 95060 (831) 239-1791
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Campbell, CA
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Foster City, CA
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223 Fridley Dr, Santa Cruz, CA 95060
Publications
Us Patents
Method And Apparatus For Waking Up A Sleeping System
View pageUS Patent:
7899923, Mar 1, 2011
Filed:
Sep 30, 2008
Appl. No.:
12/242198
Inventors:
Dieter W. Siegmund - Santa Cruz CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
G06F 15/16
US Classification:
709230, 709217, 709223, 709224, 713300, 713310, 370389
Abstract:
One embodiment of the present invention provides a system that wakes up a sleeping target system located on a target LAN (Local Area Network) from a remote system located on a remote LAN. Because the sleeping target system is in a sleep state, it receives packets of a lower-layer protocol which cannot be used by the remote system to directly send packets to the sleeping target system. During operation, the remote system creates a wake-up packet. The remote system then uses a second protocol to send the wake-up packet to a relay agent located on the target LAN. Upon receiving the first wake-up packet, the relay agent uses the lower-layer protocol to send a second wake-up packet to the sleeping target system, which causes the sleeping target system to wake up.
Source Address Based Routing Process
View pageUS Patent:
7940768, May 10, 2011
Filed:
Sep 30, 2008
Appl. No.:
12/242499
Inventors:
Cahya Masputra - San Jose CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04L 12/28
H04L 12/56
H04L 12/56
US Classification:
370392, 37039532, 370401
Abstract:
A method is described that entails assigning a source network address to an outbound packet, associating the outbound packet with a network service and identifying a first network interface associated with the network service. The method further entails inquiring into and confirming that the first network interface is associated with the source network address. The method further entails constructing a search key from an identifier of the first network interface and the outbound packet's destination address. The method further entails submitting the search key to a routing function, the routing function providing the outbound packet's next hop address. The method further entails transmitting the outbound packet to a node identified by the next hop address from the network interface.
Outbound Transmission Of Packet Based On Routing Search Key Constructed From Packet Destination Address And Outbound Interface
View pageUS Patent:
8064455, Nov 22, 2011
Filed:
Sep 30, 2008
Appl. No.:
12/242485
Inventors:
Cahya Masputra - San Jose CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04L 12/28
H04L 12/56
H04L 12/56
US Classification:
370392, 37039531
Abstract:
A method is described that involves associating an outbound packet with a first network interface and constructing a search key from an identifier of the first network interface and the outbound packet's destination address. The method further entails submitting the search key to a routing function where the routing function identifies the outbound packet's next hop address. The method also involves transmitting the outbound packet to a node identified by the next hop address from the first network interface.
Network Identification And Configuration Using Network Signature
View pageUS Patent:
8166144, Apr 24, 2012
Filed:
Dec 14, 2007
Appl. No.:
11/957224
Inventors:
Dieter Siegmund - Santa Cruz CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
G06F 15/173
US Classification:
709223
Abstract:
Methods, computer program products, systems and data structures for generating a signature for a network are described. A network signature may include, for example, network information associated with a network (e. g. , IP address, MAC address, domain name, DNS name, routing information, phone number, etc. ). A signature of a network that has previously been created can be stored to enable identification of the network in the future and to record parameters, settings, properties and attributes previously used for that network.
Routing Table Lookup Algorithm Employing Search Key Having Destination Address And Interface Component
View pageUS Patent:
8189587, May 29, 2012
Filed:
Sep 30, 2008
Appl. No.:
12/242533
Inventors:
Cahya Masputra - San Jose CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04L 12/28
US Classification:
370392
Abstract:
A routing table lookup algorithm is described that, for a first outbound packet, performs a first route lookup into the routing table with a first search key that includes the first packet's destination address and a first network interface identifier, and, for a second outbound packet, performs a second route lookup into the routing table with a second search key that includes the second outbound packet's destination address but does not include any network interface identifier.
Routing Table Build Algorithm For A Routing Table That Uses A Search Key Constructed From Packet Destination Address And Outbound Interface
View pageUS Patent:
8265078, Sep 11, 2012
Filed:
Sep 30, 2008
Appl. No.:
12/242548
Inventors:
Cahya Masputra - San Jose CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
G06F 15/173
H04L 12/28
H04L 12/56
H04L 12/28
H04L 12/56
US Classification:
370392, 37039531, 37039532, 709238
Abstract:
A method is described that involves, in view of a first default entry for a first subnet that is reachable through a first network service, where the first default entry has a numeric destination value, and in view of a second default entry for a second subnet that is reachable through a second network service, wherein the second default entry has the numeric destination value, sorting the first and second default entries by deciding that the first network service is ranked higher than the second network service. The method further involves configuring the first default entry within a routing table to have the numeric destination and not an interface component within the first default entry's search term, and, configuring the second default entry within the routing table to have the numeric destination and the second network service's interface component within the second default entry's search term.
Routing Table Lookoup Algorithm Employing Search Key Having Destination Address And Interface Component
View pageUS Patent:
8488609, Jul 16, 2013
Filed:
May 17, 2012
Appl. No.:
13/474558
Inventors:
Cahya Masputra - San Jose CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Dieter Siegmund - Santa Cruz CA, US
Vincent Lubet - Los Altos CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
H04L 12/28
US Classification:
370392
Abstract:
A routing table lookup algorithm is described that, for a first outbound packet, performs a first route lookup into the routing table with a first search key that includes the first packet's destination address and a first network interface identifier, and, for a second outbound packet, performs a second route lookup into the routing table with a second search key that includes the second outbound packet's destination address but does not include any network interface identifier.
Network Management
View pageUS Patent:
8495224, Jul 23, 2013
Filed:
Dec 10, 2007
Appl. No.:
11/953788
Inventors:
Dieter Siegmund - Santa Cruz CA, US
Assignee:
Apple Inc. - Cupertino CA
International Classification:
G06F 15/16
US Classification:
709228, 709226, 709227, 370402
Abstract:
Systems and methods relating to managing network addresses. In one implementation, a method is provided. The method includes sending a first request to use a particular network address, sending one or more second requests for respective hardware addresses corresponding to network addresses of one or more network address leases. When a hardware address corresponding to a particular network address lease is received in response to one of the one or more second requests and an acknowledgement of the first request to use the network address is not received determining whether the network address identified by the lease is the same as the network address in the first request, and when the network address is not the same, sending a third request to use the identified network address corresponding to the lease.